Elementary School Writing Quiz: Determine Meanings Of Words With Affixes
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Determine Meanings Of Words With AffixesQuestion 1 of 20

The suffix -er can mean "person who." If teach means to help someone learn, what does teacher mean?

more teach
person who teaches
teach again
without teaching
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Elementary School Writing Quiz

Elementary School Writing Quiz: Determine Meanings Of Words With Affixes

Practice Determine Meanings Of Words With Affixes in Elementary School Writing with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Determine Meanings Of Words With Affixes, giving you a quick way to practice the rules, question types, and explanations that matter most for Elementary School Writing.

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

The suffix -er can mean "person who." If teach means to help someone learn, what does teacher mean?

  1. more teach
  2. person who teaches (correct answer)
  3. teach again
  4. without teaching
Explanation: Adding "-er" to "teach" makes "teacher," which means a person who teaches. Choice B is correct. Choice A is like "-er" for comparing (more), Choice C is like "re-," and Choice D is like "-less," so none matches "teach" plus "-er" meaning a person.

Question 2

The prefix dis- means not or opposite. If agree means to think the same, what does disagree mean?

  1. think the same again
  2. full of agreement
  3. not think the same (correct answer)
  4. think before
Explanation: Adding "dis-" to "agree" makes "disagree," which means to not think the same. Choice C is correct. Choice A is like "re-" (again), Choice B is like "-ful," and Choice D is like "pre-" (before), so none matches "dis-" plus "agree."

Question 3

The suffix -less means without. If help means support, what does helpless mean?

  1. full of help
  2. a person who helps
  3. without help (correct answer)
  4. help again
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word helpless has the suffix -less added to the base word help. Knowing what both parts mean helps us figure out the whole word. Affixes are word parts added to base words that change their meaning. Suffixes go at the end (care-ful, help-less). The suffix -less means 'without' or 'lacking,' so when we add it to a base word, it means without that thing. In this word, the base word is help which means support or assistance. The suffix is -less which means without. To find the whole word's meaning, we combine these: help (support) + less (without) = without support. Choice C is correct because it properly combines the meanings. Help means support and -less means without, so helpless means without help or support. This follows the pattern for -less: careless (without care), fearless (without fear), hopeless (without hope). Choice A is incorrect because it confuses -less (without) with -ful (full of). Students make this error when they mix up opposite suffixes. To help students: Teach common suffixes and their meanings. Practice breaking words into parts: base word + suffix. Strategy: (1) Cover the suffix, identify base word and its meaning. (2) Uncover suffix, identify what it means. (3) Combine: base meaning + suffix meaning = new word meaning. Examples: help (support) + less (without) = helpless (without support). care (concern) + less (without) = careless (without concern). Practice with word families (helpless, careless, fearless - all -less meaning without). Watch for: confusing -less and -ful which are opposites.

Question 4

If kind means nice, what does unkind mean?

  1. not nice (correct answer)
  2. nice again
  3. nice
  4. full of kindness
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word 'unkind' has the prefix 'un-' added to the base word 'kind'. Knowing what both parts mean helps us figure out the whole word. Affixes are word parts added to base words that change their meaning. Prefixes go at the beginning (un-happy, re-write). The prefix 'un-' is one of the most common prefixes and means 'not' or 'opposite of'. In this word, the base word is 'kind' which means 'nice'. The prefix is 'un-' which means 'not'. To find the whole word's meaning, we combine these: not + nice = not nice. Choice A is correct because it properly combines the meanings. 'Kind' means 'nice' and 'un-' means 'not', so 'unkind' means 'not nice'. This follows the pattern for 'un-': it creates the opposite meaning. Choice B is incorrect because it confuses 'un-' with 're-' which means 'again'. Students make this error when they mix up different prefix meanings. To help students: Teach common prefixes and their meanings. Practice breaking words into parts: base word + prefix. Strategy: (1) Cover the prefix, identify 'kind' means nice. (2) Uncover prefix 'un-', identify it means 'not'. (3) Combine: not + nice = not nice. Examples: un + happy = unhappy (not happy), un + lock = unlock (not locked). Watch for: confusing un- (not) and re- (again).

Question 5

If kind means nice, what does unkind mean?

  1. more nice
  2. not nice (correct answer)
  3. nice again
  4. full of kindness
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word unkind has the prefix un- added to the base word kind. Knowing what both parts mean helps us figure out the whole word. Affixes are word parts added to base words that change their meaning. Prefixes go at the beginning (un-happy, re-write). Suffixes go at the end (care-ful, help-less). Common prefixes: un- (not), re- (again), pre- (before), dis- (not), mis- (wrong). Common suffixes: -ful (full of), -less (without), -er (person who), -ly (in that way), -ness (state of being), -able (can be). When you know the base word meaning and the affix meaning, you can figure out the new word meaning. In this word, the base word is kind which means nice. The prefix is un- which means not. To find the whole word's meaning, we combine these: not + kind. Choice B is correct because it properly combines the meanings. Kind means nice and un- means not, so unkind means not nice. This follows the pattern for un-: not + base. Choice C is incorrect because it doesn't apply the affix meaning correctly and uses the meaning for re- instead of un-. Students make this error when they confuse similar affixes like un- and re-. To help students: Teach common affixes and their meanings. Practice breaking words into parts: base word + affix. Strategy: (1) Cover the affix, identify base word and its meaning. (2) Uncover affix, identify what it means. (3) Combine: base meaning + affix meaning = new word meaning. Examples: un (not) + happy (glad) = unhappy (not glad). re (again) + write (put words) = rewrite (put words again). care (concern) + ful (full of) = careful (full of concern). care (concern) + less (without) = careless (without concern). Practice with word families (unhappy, unkind, unlock - all un- meaning not). Watch for: confusing un- and re- / ignoring the affix / not combining meanings / wrong affix definition.

Question 6

The suffix -ly means in a certain way. If quick means fast, what does quickly mean?​​

  1. without being quick
  2. in a fast way (correct answer)
  3. fast person
  4. fast again
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word quickly has the suffix -ly added to the base word quick. Knowing what both parts mean helps us figure out the whole word. Affixes are word parts added to base words that change their meaning. Suffixes go at the end (slow-ly, care-ful). The suffix -ly means 'in that way' or 'in the manner of,' so when we add it to an adjective, it tells how something is done. In this word, the base word is quick which means fast. The suffix is -ly which means in that way. To find the whole word's meaning, we combine these: quick (fast) + ly (in that way) = in a fast way. Choice B is correct because it properly combines the meanings. Quick means fast and -ly means in that way, so quickly means in a fast way or doing something fast. This follows the pattern for -ly: slowly (in a slow way), quietly (in a quiet way), carefully (in a careful way). Choice C is incorrect because it confuses -ly (in that way) with -er (person who). Students make this error when they mix up different suffix meanings. To help students: Teach common suffixes and their meanings. Practice breaking words into parts: base word + suffix. Strategy: (1) Cover the suffix, identify base word and its meaning. (2) Uncover suffix, identify what it means. (3) Combine: base meaning + suffix meaning = new word meaning. Examples: quick (fast) + ly (in that way) = quickly (in a fast way). slow + ly = slowly (in a slow way). Practice with word families (quickly, slowly, quietly - all -ly meaning in that way).

Question 7

The prefix re- means again. What does reread mean?

  1. read again (correct answer)
  2. not read
  3. read before
  4. a person who reads
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word reread has the prefix re- added to the base word read. Knowing what both parts mean helps us figure out the whole word. Affixes are word parts added to base words that change their meaning. Prefixes go at the beginning (un-happy, re-write). Suffixes go at the end (care-ful, help-less). Common prefixes: un- (not), re- (again), pre- (before), dis- (not), mis- (wrong). Common suffixes: -ful (full of), -less (without), -er (person who), -ly (in that way), -ness (state of being), -able (can be). When you know the base word meaning and the affix meaning, you can figure out the new word meaning. In this word, the base word is read which means to look at and understand written words. The prefix is re- which means again. To find the whole word's meaning, we combine these: again + read. Choice A is correct because it properly combines the meanings. Read means to look at and understand written words and re- means again, so reread means read again. This follows the pattern for re-: again + base. Choice B is incorrect because it doesn't apply the affix meaning correctly and uses the meaning for un- instead of re-. Students make this error when they confuse similar affixes like un- and re-. To help students: Teach common affixes and their meanings. Practice breaking words into parts: base word + affix. Strategy: (1) Cover the affix, identify base word and its meaning. (2) Uncover affix, identify what it means. (3) Combine: base meaning + affix meaning = new word meaning. Examples: un (not) + happy (glad) = unhappy (not glad). re (again) + write (put words) = rewrite (put words again). care (concern) + ful (full of) = careful (full of concern). care (concern) + less (without) = careless (without concern). Practice with word families (unhappy, unkind, unlock - all un- meaning not). Watch for: confusing un- and re- / ignoring the affix / not combining meanings / wrong affix definition.

Question 8

If kind means nice, what does unkind mean?

  1. nice again
  2. not nice (correct answer)
  3. full of nice
  4. nice
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word unkind has the prefix un- added to the base word kind. Knowing what both parts mean helps us figure out the whole word. Affixes are word parts added to base words that change their meaning. Prefixes go at the beginning (un-happy, re-write). The prefix un- means 'not' or 'opposite of,' so when we add it to a base word, it creates the opposite meaning. In this word, the base word is kind which means nice or caring. The prefix is un- which means not. To find the whole word's meaning, we combine these: not + nice = not nice. Choice B is correct because it properly combines the meanings. Kind means nice and un- means not, so unkind means not nice. This follows the pattern for un-: unhappy (not happy), unfair (not fair), unsafe (not safe). Choice A is incorrect because it uses the wrong prefix meaning - re- means again, not un-. Students make this error when they don't know the correct prefix meaning. To help students: Teach common prefixes and their meanings. Practice breaking words into parts: base word + prefix. Strategy: (1) Cover the prefix, identify base word and its meaning. (2) Uncover prefix, identify what it means. (3) Combine: prefix meaning + base meaning = new word meaning. Examples: un (not) + happy (glad) = unhappy (not glad).

Question 9

The prefix dis- means not. What does disagree mean?

  1. agree again
  2. not agree (correct answer)
  3. agree before
  4. full of agreement
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word disagree has the prefix dis- added to the base word agree. Knowing what both parts mean helps us figure out the whole word. Affixes are word parts added to base words that change their meaning. Prefixes go at the beginning (un-happy, re-write). Suffixes go at the end (care-ful, help-less). Common prefixes: un- (not), re- (again), pre- (before), dis- (not), mis- (wrong). Common suffixes: -ful (full of), -less (without), -er (person who), -ly (in that way), -ness (state of being), -able (can be). When you know the base word meaning and the affix meaning, you can figure out the new word meaning. In this word, the base word is agree which means to have the same opinion. The prefix is dis- which means not. To find the whole word's meaning, we combine these: not + agree. Choice B is correct because it properly combines the meanings. Agree means to have the same opinion and dis- means not, so disagree means not agree. This follows the pattern for dis-: not + base. Choice A is incorrect because it doesn't apply the affix meaning correctly and uses the meaning for re- instead of dis-. Students make this error when they confuse similar affixes like dis- and re-. To help students: Teach common affixes and their meanings. Practice breaking words into parts: base word + affix. Strategy: (1) Cover the affix, identify base word and its meaning. (2) Uncover affix, identify what it means. (3) Combine: base meaning + affix meaning = new word meaning. Examples: un (not) + happy (glad) = unhappy (not glad). re (again) + write (put words) = rewrite (put words again). care (concern) + ful (full of) = careful (full of concern). care (concern) + less (without) = careless (without concern). Practice with word families (unhappy, unkind, unlock - all un- meaning not). Watch for: confusing un- and re- / ignoring the affix / not combining meanings / wrong affix definition.

Question 10

The prefix mis- means wrong. What does misplace mean?

  1. place something in the wrong spot (correct answer)
  2. place something again
  3. not place something
  4. a place full of things
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word misplace has the prefix mis- added to the base word place. Knowing what both parts mean helps us figure out the whole word. Affixes are word parts added to base words that change their meaning. Prefixes go at the beginning (un-happy, re-write). Suffixes go at the end (care-ful, help-less). Common prefixes: un- (not), re- (again), pre- (before), dis- (not), mis- (wrong). Common suffixes: -ful (full of), -less (without), -er (person who), -ly (in that way), -ness (state of being), -able (can be). When you know the base word meaning and the affix meaning, you can figure out the new word meaning. In this word, the base word is place which means to put something in a spot. The prefix is mis- which means wrong. To find the whole word's meaning, we combine these: wrong + place. Choice A is correct because it properly combines the meanings. Place means to put something in a spot and mis- means wrong, so misplace means place something in the wrong spot. This follows the pattern for mis-: wrong + base. Choice B is incorrect because it doesn't apply the affix meaning correctly and uses the meaning for re- instead of mis-. Students make this error when they confuse similar affixes like mis- and re-. To help students: Teach common affixes and their meanings. Practice breaking words into parts: base word + affix. Strategy: (1) Cover the affix, identify base word and its meaning. (2) Uncover affix, identify what it means. (3) Combine: base meaning + affix meaning = new word meaning. Examples: un (not) + happy (glad) = unhappy (not glad). re (again) + write (put words) = rewrite (put words again). care (concern) + ful (full of) = careful (full of concern). care (concern) + less (without) = careless (without concern). Practice with word families (unhappy, unkind, unlock - all un- meaning not). Watch for: confusing un- and re- / ignoring the affix / not combining meanings / wrong affix definition.

Question 11

The suffix -ful means full of. If help means aid, what does helpful mean?

  1. without help
  2. full of help (correct answer)
  3. help again
  4. not help
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word 'helpful' has the suffix '-ful' added to the base word 'help'. Knowing what both parts mean helps us figure out the whole word. Affixes are word parts added to base words that change their meaning. Suffixes go at the end (care-ful, help-less). The suffix '-ful' is a common suffix that means 'full of' or 'having the quality of'. The question tells us this meaning. In this word, the base word is 'help' which means aid or assistance. The suffix is '-ful' which means 'full of'. To find the whole word's meaning, we combine these: help + full of = full of help. Choice B is correct because it properly combines the meanings. 'Help' means aid and '-ful' means 'full of', so 'helpful' means 'full of help' or providing lots of assistance. This follows the pattern for '-ful': it shows something has a lot of the base word's quality. Choice A is incorrect because it confuses '-ful' with '-less' which means 'without'. Students make this error when they mix up opposite suffixes. To help students: Teach common suffixes and their meanings. Practice breaking words into parts: base word + suffix. Strategy: (1) Cover the suffix, identify 'help' means aid. (2) Uncover suffix '-ful', remember it means 'full of'. (3) Combine: help + full of = full of help. Examples: care + ful = careful (full of care), joy + ful = joyful (full of joy). Watch for: confusing -ful (full of) and -less (without).

Question 12

The suffix -less means without. If fear means being scared, what does fearless mean?

  1. full of fear
  2. fear again
  3. without fear (correct answer)
  4. more fear
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word fearless has the suffix -less added to the base word fear. Knowing what both parts mean helps us figure out the whole word. Affixes are word parts added to base words that change their meaning. Suffixes go at the end (care-ful, help-less). The suffix -less means 'without' or 'lacking,' so when we add it to a base word, it means not having that thing. In this word, the base word is fear which means being scared or afraid. The suffix is -less which means without. To find the whole word's meaning, we combine these: without + fear = without fear. Choice C is correct because it properly combines the meanings. Fear means being scared and -less means without, so fearless means without fear (not scared, brave). This follows the pattern for -less: careless (without care), helpless (without help), hopeless (without hope). Choice A is incorrect because it uses the wrong suffix meaning - -ful means full of, not -less. Students make this error when they confuse opposite suffixes. To help students: Teach common suffixes and their meanings. Practice breaking words into parts: base word + suffix. Strategy: (1) Cover the suffix, identify base word and its meaning. (2) Uncover suffix, identify what it means. (3) Combine: base meaning + suffix meaning = new word meaning.

Question 13

The suffix -less means without. If hope means wishing, what does hopeless mean?​

  1. full of hope
  2. without hope (correct answer)
  3. hope again
  4. a person who hopes
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word hopeless has the suffix -less added to the base word hope. Knowing what both parts mean helps us figure out the whole word. Affixes are word parts added to base words that change their meaning. Prefixes go at the beginning (un-happy, re-write). Suffixes go at the end (care-ful, help-less). Common prefixes: un- (not), re- (again), pre- (before), dis- (not), mis- (wrong). Common suffixes: -ful (full of), -less (without), -er (person who), -ly (in that way), -ness (state of being), -able (can be). When you know the base word meaning and the affix meaning, you can figure out the new word meaning. In this word, the base word is hope which means wishing. The suffix is -less which means without. To find the whole word's meaning, we combine these: without + hope. Choice B is correct because it properly combines the meanings. Hope means wishing and -less means without, so hopeless means without hope. This follows the pattern for -less: without + base. Choice A is incorrect because it doesn't apply the affix meaning correctly and uses the meaning for -ful instead of -less. Students make this error when they confuse similar affixes like -less and -ful. To help students: Teach common affixes and their meanings. Practice breaking words into parts: base word + affix. Strategy: (1) Cover the affix, identify base word and its meaning. (2) Uncover affix, identify what it means. (3) Combine: base meaning + affix meaning = new word meaning. Examples: un (not) + happy (glad) = unhappy (not glad). re (again) + write (put words) = rewrite (put words again). care (concern) + ful (full of) = careful (full of concern). care (concern) + less (without) = careless (without concern). Practice with word families (unhappy, unkind, unlock - all un- meaning not). Watch for: confusing un- and re- / ignoring the affix / not combining meanings / wrong affix definition.

Question 14

The suffix -ly means in a certain way. If quick means fast, what does quickly mean?​

  1. in a fast way (correct answer)
  2. without speed
  3. fast again
  4. a person who is fast
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word quickly has the suffix -ly added to the base word quick. Knowing what both parts mean helps us figure out the whole word. Affixes are word parts added to base words that change their meaning. Prefixes go at the beginning (un-happy, re-write). Suffixes go at the end (care-ful, help-less). Common prefixes: un- (not), re- (again), pre- (before), dis- (not), mis- (wrong). Common suffixes: -ful (full of), -less (without), -er (person who), -ly (in that way), -ness (state of being), -able (can be). When you know the base word meaning and the affix meaning, you can figure out the new word meaning. In this word, the base word is quick which means fast. The suffix is -ly which means in that way. To find the whole word's meaning, we combine these: in a quick way. Choice A is correct because it properly combines the meanings. Quick means fast and -ly means in that way, so quickly means in a fast way. This follows the pattern for -ly: in that way + base. Choice B is incorrect because it doesn't apply the affix meaning correctly and uses the meaning for -less instead of -ly. Students make this error when they confuse similar affixes like -ly and -less. To help students: Teach common affixes and their meanings. Practice breaking words into parts: base word + affix. Strategy: (1) Cover the affix, identify base word and its meaning. (2) Uncover affix, identify what it means. (3) Combine: base meaning + affix meaning = new word meaning. Examples: un (not) + happy (glad) = unhappy (not glad). re (again) + write (put words) = rewrite (put words again). care (concern) + ful (full of) = careful (full of concern). care (concern) + less (without) = careless (without concern). Practice with word families (unhappy, unkind, unlock - all un- meaning not). Watch for: confusing un- and re- / ignoring the affix / not combining meanings / wrong affix definition.

Question 15

The suffix -ness means state of being. If happy means glad, what does happiness mean?

  1. not happy
  2. happy again
  3. state of being glad (correct answer)
  4. full of happy
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word happiness has the suffix -ness added to the base word happy. Knowing what both parts mean helps us figure out the whole word. Affixes are word parts added to base words that change their meaning. Suffixes go at the end (care-ful, help-less). The suffix -ness means 'state of being' or 'the condition of being,' so when we add it to a describing word, it creates a noun that means being in that state. In this word, the base word is happy which means glad or joyful. The suffix is -ness which means state of being. To find the whole word's meaning, we combine these: state of being + glad = state of being glad. Choice C is correct because it properly combines the meanings. Happy means glad and -ness means state of being, so happiness means state of being glad. This follows the pattern for -ness: sadness (state of being sad), kindness (state of being kind), darkness (state of being dark). Choice D is incorrect because it uses the wrong suffix meaning - -ful means full of, not -ness. Students make this error when they confuse different suffixes. To help students: Teach common suffixes and their meanings. Practice breaking words into parts: base word + suffix. Strategy: (1) Cover the suffix, identify base word and its meaning. (2) Uncover suffix, identify what it means. (3) Combine: base meaning + suffix meaning = new word meaning.

Question 16

The prefix pre- means before. What does preheat mean?

  1. heat before (correct answer)
  2. heat again
  3. not heat
  4. heat wrong
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word preheat has the prefix pre- added to the base word heat. Knowing what both parts mean helps us figure out the whole word. Affixes are word parts added to base words that change their meaning. Prefixes go at the beginning (un-happy, re-write). The prefix pre- means 'before,' so when we add it to a base word, it means doing that action before something else. In this word, the base word is heat which means to make warm or hot. The prefix is pre- which means before. To find the whole word's meaning, we combine these: before + heat = heat before. Choice A is correct because it properly combines the meanings. Heat means to make warm and pre- means before, so preheat means heat before (usually before cooking). This follows the pattern for pre-: preview (view before), prepay (pay before), pretest (test before). Choice B is incorrect because it uses the wrong prefix meaning - re- means again, not pre-. Students make this error when they confuse similar prefixes. To help students: Teach common prefixes and their meanings. Practice breaking words into parts: base word + prefix. Strategy: (1) Cover the prefix, identify base word and its meaning. (2) Uncover prefix, identify what it means. (3) Combine: prefix meaning + base meaning = new word meaning.

Question 17

The suffix -less means without. If hope means wishing, what does hopeless mean?

  1. full of hope
  2. without hope (correct answer)
  3. hope again
  4. a person who hopes
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word hopeless has the suffix -less added to the base word hope. Knowing what both parts mean helps us figure out the whole word. Affixes are word parts added to base words that change their meaning. Prefixes go at the beginning (un-happy, re-write). Suffixes go at the end (care-ful, help-less). Common prefixes: un- (not), re- (again), pre- (before), dis- (not), mis- (wrong). Common suffixes: -ful (full of), -less (without), -er (person who), -ly (in that way), -ness (state of being), -able (can be). When you know the base word meaning and the affix meaning, you can figure out the new word meaning. In this word, the base word is hope which means wishing. The suffix is -less which means without. To find the whole word's meaning, we combine these: without + hope. Choice B is correct because it properly combines the meanings. Hope means wishing and -less means without, so hopeless means without hope. This follows the pattern for -less: without + base. Choice A is incorrect because it doesn't apply the affix meaning correctly and uses the meaning for -ful instead of -less. Students make this error when they confuse similar affixes like -less and -ful. To help students: Teach common affixes and their meanings. Practice breaking words into parts: base word + affix. Strategy: (1) Cover the affix, identify base word and its meaning. (2) Uncover affix, identify what it means. (3) Combine: base meaning + affix meaning = new word meaning. Examples: un (not) + happy (glad) = unhappy (not glad). re (again) + write (put words) = rewrite (put words again). care (concern) + ful (full of) = careful (full of concern). care (concern) + less (without) = careless (without concern). Practice with word families (unhappy, unkind, unlock - all un- meaning not). Watch for: confusing un- and re- / ignoring the affix / not combining meanings / wrong affix definition.

Question 18

The suffix -ful means full of. If help means to give support, what does helpful mean?​​​

  1. without help
  2. full of help (correct answer)
  3. help again
  4. not helping
Explanation: This question tests determining meanings of words with affixes (CCSS.L.3.4.b). The word 'helpful' has the suffix '-ful' added to the base word 'help'. Knowing what both parts mean helps us figure out the whole word. Suffixes are word parts added to the end of base words that change their meaning. The suffix '-ful' means 'full of' or 'having a lot of' - we see this in words like careful (full of care), beautiful (full of beauty), and joyful (full of joy). In this word, the base word is 'help' which the question tells us means 'to give support'. The suffix is '-ful' which means 'full of'. To find the whole word's meaning, we combine these: full of + giving support = full of help. Choice B is correct because it properly combines the meanings. 'Help' means to give support and '-ful' means full of, so 'helpful' means full of help. This follows the pattern for '-ful': it means having the quality of the base word. Choice A is incorrect because it confuses '-ful' with '-less' which means 'without' - these are opposite suffixes. Students make this error when they mix up suffix meanings or don't know that -ful and -less are opposites. To help students: Teach suffix pairs as opposites: -ful (full of) vs -less (without). Practice strategy: (1) Cover '-ful', identify 'help' means support. (2) Uncover '-ful', identify it means 'full of'. (3) Combine: help + full of = full of help. Create word pairs showing opposites: helpful/helpless, careful/careless, hopeful/hopeless. Watch for students confusing -ful (full of) with -less (without).

Question 19

The suffix -ly means "in a certain way." If quick means fast, what does quickly mean?

  1. not quick
  2. in a fast way (correct answer)
  3. full of quick
  4. quick again
Explanation: Adding "-ly" to "quick" makes "quickly," which means in a fast way. Choice B is correct. Choice A means the opposite, Choice C is like "-ful," and Choice D is like "re-," so none matches "quick" plus "-ly."

Question 20

The suffix -less means without. If help means support, what does helpless mean?

  1. full of help
  2. a person who helps
  3. without help (correct answer)
  4. help again
Explanation: Adding "-less" to "help" makes "helpless," which means without help. Choice C is correct. Choice A is like "-ful," Choice B is like "-er" (a person), and Choice D is like "re-," so none matches "help" plus "-less."