Elementary School Math Quiz: Find Pairs That Make 10
10 questions · exam conditions
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Find Pairs That Make 10Question 1 of 10

Lily is counting her crayons. She has 55 red crayons and some blue crayons. When she counts all her crayons together, she gets 1010. Later, she gives away 11 blue crayon to her brother. How many blue crayons does Lily have now?

Lily now has 33 blue crayons remaining
Lily now has 44 blue crayons remaining
Lily now has 55 blue crayons remaining
Lily now has 66 blue crayons remaining
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Elementary School Math Quiz

Elementary School Math Quiz: Find Pairs That Make 10

Practice Find Pairs That Make 10 in Elementary School Math 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 Find Pairs That Make 10, giving you a quick way to practice the rules, question types, and explanations that matter most for Elementary School Math.

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

Lily is counting her crayons. She has 55 red crayons and some blue crayons. When she counts all her crayons together, she gets 1010. Later, she gives away 11 blue crayon to her brother. How many blue crayons does Lily have now?

  1. Lily now has 33 blue crayons remaining
  2. Lily now has 44 blue crayons remaining (correct answer)
  3. Lily now has 55 blue crayons remaining
  4. Lily now has 66 blue crayons remaining
Explanation: Lily has 5 red crayons and 10 total crayons, so she started with 5 + 5 = 10, meaning 5 blue crayons. After giving away 1 blue crayon, she has 5 - 1 = 4 blue crayons left. Choice A (3) subtracts 2 instead of 1. Choice C (5) forgets to subtract the given away crayon. Choice D (6) incorrectly adds instead of subtracts.

Question 2

Look at the ten frame shown. Some circles are filled in and some are empty. If you want to fill all 1010 spaces, how many more circles do you need to draw?

  1. 11 more circle needs to be drawn
  2. 22 more circles need to be drawn
  3. 33 more circles need to be drawn (correct answer)
  4. 88 more circles need to be drawn
Explanation: The ten frame shows 7 filled circles. To make 10 total, we need 7 + 3 = 10, so 3 more circles are needed. Choice A (1) would give 7 + 1 = 8. Choice B (2) would give 7 + 2 = 9. Choice D (8) incorrectly counts the filled circles instead of the empty ones.

Question 3

Look at the domino shown. The domino has dots on both sides. If you want the total number of dots on the domino to equal 1010, how many dots should be on the right side?

  1. The right side should have 22 dots total (correct answer)
  2. The right side should have 33 dots total
  3. The right side should have 44 dots total
  4. The right side should have 88 dots total
Explanation: The left side of the domino shows 8 dots. To make 10 dots total, the right side needs 8 + 2 = 10, so 2 dots. Choice B (3) would give 8 + 3 = 11 dots total. Choice C (4) would give 8 + 4 = 12 dots total. Choice D (8) would give 8 + 8 = 16 dots total.

Question 4

Look at the picture showing dots in two groups. If you want to have exactly 1010 dots total, how many more dots do you need to add to the second group?

  1. You need to add 22 more dots to the second group
  2. You need to add 33 more dots to the second group
  3. You need to add 44 more dots to the second group (correct answer)
  4. You need to add 66 more dots to the second group
Explanation: The first group has 4 dots and the second group has 2 dots, making 6 dots total currently. To reach 10 dots total, we need 6 + 4 = 10, so 4 more dots are needed in the second group. Choice A (2) would give 6 + 2 = 8 total. Choice B (3) would give 6 + 3 = 9 total. Choice D (6) would give 6 + 6 = 12 total.

Question 5

Look at the number line. A frog starts at the number 44 and wants to jump to the number 1010. If the frog makes just one jump, how many spaces must it jump?

  1. The frog must jump 55 spaces forward
  2. The frog must jump 66 spaces forward (correct answer)
  3. The frog must jump 77 spaces forward
  4. The frog must jump 1414 spaces forward
Explanation: Starting at 4 and ending at 10 means the frog jumps 4 + 6 = 10, so 6 spaces. We can count: 4‚Üí5‚Üí6‚Üí7‚Üí8‚Üí9‚Üí10 is 6 jumps. Choice A (5) would land at 4 + 5 = 9. Choice C (7) would land at 4 + 7 = 11. Choice D (14) comes from incorrectly adding 4 + 10 = 14.

Question 6

Maria is making towers with building blocks. She builds one tower with 88 blocks and wants to build a second tower so that both towers together have exactly 1010 blocks. How many blocks should she use for the second tower?

  1. She should use 11 block for the second tower
  2. She should use 33 blocks for the second tower
  3. She should use 22 blocks for the second tower (correct answer)
  4. She should use 1818 blocks for the second tower
Explanation: When you see a problem asking how many more items you need to reach a total, you're working with addition and finding missing parts. Think about what you know and what you're trying to find. Maria already has one tower with 88 blocks, and she wants both towers together to have exactly 1010 blocks total. To find how many blocks the second tower needs, you can think: "88 blocks plus how many more blocks equals 1010 blocks?" This gives you the equation 8+?=108 + ? = 10. To solve this, you can count up from 88 to 1010: "88, 99, 1010" — that's 22 more blocks needed. Or you can subtract: 10−8=210 - 8 = 2. So Maria needs 22 blocks for her second tower. Looking at the wrong answers: Choice A suggests 11 block, but 8+1=98 + 1 = 9, which is less than the target of 1010 blocks. Choice B suggests 33 blocks, but 8+3=118 + 3 = 11, which exceeds the target. Choice D suggests 1818 blocks, but 8+18=268 + 18 = 26, which is way too many — this choice might tempt students who mistakenly add 8+108 + 10 instead of finding the missing part. The correct answer is C: 22 blocks for the second tower. Memory tip: When finding a missing part, always check your answer by adding it to what you already have. Your total should match exactly what the problem asks for.

Question 7

Carlos has some toy cars. He gives 33 cars to his friend. After giving away the cars, Carlos has 77 cars left. If Carlos and his friend put all their cars together now, how many cars will they have?

  1. They will have 99 cars together in total
  2. They will have 1111 cars together in total
  3. They will have 1010 cars together in total (correct answer)
  4. They will have 1313 cars together in total
Explanation: This problem is about addition and subtraction with real-world context. When you see word problems like this, break them down step by step to find what information you have and what you need to figure out. Let's work through this together. Carlos gives away 33 cars and has 77 cars left. To find how many cars Carlos started with, you add: 7+3=107 + 3 = 10 cars originally. Now Carlos has 77 cars, and his friend has the 33 cars that Carlos gave him. When they put all their cars together, you add: 7+3=107 + 3 = 10 cars total. Looking at the wrong answers: Answer A (99 cars) might come from accidentally subtracting instead of adding Carlos's remaining cars and his friend's cars: 7−3=47 - 3 = 4, though this doesn't directly give 99. Answer B (1111 cars) could happen if you mistakenly added Carlos's original amount (1010) plus his friend's cars (33) but forgot that this double-counts the 33 cars. Answer D (1313 cars) might result from adding all the numbers in the problem without thinking: 3+7+3=133 + 7 + 3 = 13, but this incorrectly counts the 33 given-away cars twice. The correct answer is C: they will have 1010 cars together in total. Remember this strategy: in word problems involving giving away items, the total number of items doesn't change—they just move from person to person. So Carlos's 77 remaining cars plus his friend's 33 cars equals the 1010 cars Carlos originally had.

Question 8

Emma has some red blocks and some blue blocks. She counts 77 red blocks. If she puts all her blocks together, she will have exactly 1010 blocks total. How many blue blocks does Emma have?

  1. 22 blue blocks
  2. 1717 blue blocks
  3. 44 blue blocks
  4. 33 blue blocks (correct answer)
Explanation: When you see a problem about combining groups of objects, you're working with addition and subtraction. The key is to understand what you know and what you need to find. Emma has 77 red blocks, and when she puts all her blocks together, she gets exactly 1010 blocks total. To find how many blue blocks she has, you need to figure out what number, when added to 77, equals 1010. You can think of this as: 7+?=107 + ? = 10. To solve this, you subtract what you know from the total: 10−7=310 - 7 = 3. So Emma has 33 blue blocks. Let's check why the other answers don't work. Choice A says 22 blue blocks. If Emma had 22 blue blocks, she would have 7+2=97 + 2 = 9 blocks total, which is less than 1010. Choice B suggests 1717 blue blocks, which would give her 7+17=247 + 17 = 24 blocks total—way more than 1010. Choice C claims 44 blue blocks, which would mean 7+4=117 + 4 = 11 blocks total, still too many. Only choice D works: 7+3=107 + 3 = 10 blocks total, exactly what the problem tells us. Remember this strategy: when you know part of a group and the whole group, subtract the part from the whole to find what's missing. This "part + part = whole" thinking will help you solve many math problems as you continue learning.

Question 9

Sam has 99 stickers in his collection. His sister gives him some more stickers. Now Sam has exactly 1010 stickers. Which equation shows how many stickers his sister gave him?

  1. 9+1=109 + 1 = 10, so she gave him 11 sticker (correct answer)
  2. 9+2=119 + 2 = 11, so she gave him 22 stickers
  3. 10−9=1910 - 9 = 19, so she gave him 1919 stickers
  4. 9+10=199 + 10 = 19, so she gave him 1010 stickers
Explanation: Sam started with 9 stickers and ended with 10 stickers. So 9 + ? = 10, which means ? = 1. The equation 9 + 1 = 10 is correct. Choice B shows 9 + 2 = 11, but Sam has 10, not 11. Choice C has incorrect arithmetic (10 - 9 = 1, not 19). Choice D adds the starting and ending amounts incorrectly.

Question 10

Jake is playing a number game. He picks a mystery number and says: "When I add my mystery number to 66, I get 1010. What is my mystery number?"

  1. The mystery number is 33
  2. The mystery number is 1616
  3. The mystery number is 55
  4. The mystery number is 44 (correct answer)
Explanation: When you see a mystery number problem, you're solving a simple equation by thinking about what number makes the math statement true. Jake says that his mystery number plus 66 equals 1010. So you need to find what number, when added to 66, gives you 1010. You can think of this as: mystery number +6=10+ 6 = 10. To find the mystery number, ask yourself: "What do I add to 66 to get 1010?" You can count up from 66 to 1010: 6,7,8,9,106, 7, 8, 9, 10. That's 44 more numbers, so the mystery number is 44. You can check this: 4+6=104 + 6 = 10 ✓ Let's see why the other answers don't work: A) If the mystery number were 33, then 3+6=93 + 6 = 9, not 1010. B) If the mystery number were 1616, then 16+6=2216 + 6 = 22, which is way too big. C) If the mystery number were 55, then 5+6=115 + 6 = 11, which is one too many. The correct answer is D) 44. Strategy tip: For mystery number problems, always check your answer by plugging it back into the original statement. If Jake's mystery number is 44, does 4+6=104 + 6 = 10? Yes! This checking step will help you catch mistakes and feel confident in your answer.