All questions
Question 1
Yuki compares 40 and 4. How many times greater is 40 than 4?
- 0.1
- 100
- 10 (correct answer)
- 36
Explanation: Dividing 40 by 4 gives 10, so 40 is 10 times greater than 4, making Choice C correct. Choice A, 0.1, is the reciprocal of the correct answer, as if the comparison were flipped. Choice B, 100, would come from squaring the correct ratio instead of dividing directly. Choice D, 36, comes from subtracting 4 from 40 instead of dividing.
Question 2
Based on place value, what is 600÷60?
- 540
- 0.1
- 10 (correct answer)
- 100
Explanation: This question tests 4th grade understanding that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right (CCSS.4.NBT.1). Our place value system is based on groups of 10. Each place value position is 10 times the position to its right—ones become tens (×10), tens become hundreds (×10), hundreds become thousands (×10). This means that the same digit in adjacent places has values that differ by a factor of 10. For example, 7 in the hundreds place (700) is 10 times the 7 in the tens place (70). In this problem, students compare 600 (6 hundreds) and 60 (6 tens), requiring them to calculate 600 ÷ 60 to identify the multiplicative relationship. Choice C is correct because dividing the larger value by the smaller value: 600 ÷ 60 = 10, recognizing that each place is 10 times the place to its right. Choice D represents using 100 instead of 10 (confused with non-adjacent places), which happens when students confuse operations. To help students: Use place value charts or base-ten blocks to show that 1 hundred = 10 tens, 1 thousand = 10 hundreds. Emphasize the pattern: moving one place to the left multiplies by 10, moving one place to the right divides by 10. Practice with division: 700 ÷ 70 = 10, 5,000 ÷ 500 = 10, 30 ÷ 3 = 10 (always 10 for adjacent places). Use numbers with repeating digits (4,440, 7,777) to make the relationship clear. Point out that the DIGIT stays the same, but the VALUE changes by 10 times. Watch for: students who subtract instead of divide, students who use 100 for the relationship (that's for places two positions apart), and students who give the digit value instead of the multiplicative relationship.
Question 3
In the number 4,440, how many times greater is the value of the digit 4 in the thousands place than the digit 4 in the hundreds place?
- 100 times
- 1 time
- 10 times (correct answer)
- 4 times
Explanation: The digit 4 in the thousands place has a value of 4,000, and the digit 4 in the hundreds place has a value of 400, and 4,000 divided by 400 is 10, so Choice C is correct. Choice A, 100 times, would be the ratio between the thousands place and the tens place, not the hundreds place. Choice B, 1 time, would mean the two place values are equal, which they are not. Choice D, 4 times, mistakenly compares the digits themselves instead of their place values.
Question 4
In the number 7,770, the digit 7 in the hundreds place represents how many times what the digit 7 in the tens place represents?
- 100 times
- 10 times (correct answer)
- 770 times
- 7 times
Explanation: The digit 7 in the hundreds place has a value of 700, and the digit 7 in the tens place has a value of 70, and 700 divided by 70 is 10, so Choice B is correct. Choice A, 100 times, would be the ratio between the hundreds place and the ones place, not the tens place. Choice C, 770 times, is just the number formed by the two digits together, not a ratio of their place values. Choice D, 7 times, mistakenly compares the digits themselves instead of their place values.
Question 5
A digital scoreboard shows 45,630 points. Due to a malfunction, each digit shifts one place to the right, and a 0 appears in the ten-thousands place. What number does the scoreboard show now?
- 4,563 (correct answer)
- 456,300
- 45,63
- 40,563
Explanation: Shifting every digit one place to the right divides the number by 10: 45,630÷10=4,563. Choice B shifts the digits to the left instead, multiplying by 10. Choice C misplaces the comma without actually shifting every digit correctly. Choice D only shifts part of the number, leaving some digits in their original places. Question 6
In the number 2,222, the digit 2 in the tens place represents what value compared to the digit 2 in the ones place?
- It is 2 times as much.
- It is the same value.
- It is 100 times as much.
- It is 10 times as much. (correct answer)
Explanation: The correct answer is that the tens digit is 10 times as much as the ones digit, because each place value is 10 times the value of the place to its right. Choice A confuses the digit itself, 2, with the place value comparison. Choice B ignores that the tens place and ones place have different values. Choice C overstates the relationship, since moving one place value to the left multiplies by 10, not 100.
Question 7
In the number 58,347, Carlos multiplied the value of the 8 by a certain number and got 80,000. Then he divided the value of the 3 by that same number. What was his result?
- 30 (correct answer)
- 3
- 300
- 0.3
Explanation: The digit 8 is in the thousands place, so its value is 8,000. To get 80,000, Carlos multiplied by 10 (since 8,000 × 10 = 80,000). The digit 3 is in the hundreds place, so its value is 300. Dividing by the same number: 300 ÷ 10 = 30. Choice B gives just the digit 3, not its place value divided by 10. Choice C gives the original place value of 3 without dividing. Choice D would result from incorrectly thinking 3 ÷ 10 = 0.3 instead of using the place value 300.
Question 8
Based on place value, what is 800÷80?
- 720
- 0.1
- 100
- 10 (correct answer)
Explanation: The correct answer is 10, because 800 divided by 80 equals 10 when you think of it as 8 hundreds divided by 8 tens. Choice A, 720, comes from subtracting 80 from 800 instead of dividing. Choice B, 0.1, comes from flipping the division and finding 80 divided by 800 instead. Choice C, 100, comes from mistakenly dividing by 8 instead of 80.
Question 9
Which statement correctly describes the relationship between 400 and 40?
- 400 and 40 have the same value.
- 400 is 10 times 40. (correct answer)
- 400 is 100 times 40.
- 400 is 360 more than 40.
Explanation: The correct answer is B because 400=10×40, matching the place-value relationship between the two numbers. Choice A is incorrect since 400 and 40 are different values. Choice C overstates the relationship, confusing it with a jump across two place values instead of one. Choice D describes a difference rather than a multiplicative relationship, which is what the question asks about. Question 10
In the number 5,550, the digit 5 in the hundreds place represents what value compared to the digit 5 in the tens place?
- It is 5 times as much.
- It is 10 times as much. (correct answer)
- It is 100 times as much.
- It is the same value.
Explanation: This question tests 4th grade understanding that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right (CCSS.4.NBT.1). Our place value system is based on groups of 10. Each place value position is 10 times the position to its right—ones become tens (×10), tens become hundreds (×10), hundreds become thousands (×10). This means that the same digit in adjacent places has values that differ by a factor of 10. For example, 7 in the hundreds place (700) is 10 times the 7 in the tens place (70). In the number 5,550, the digit 5 appears in the hundreds place (value 500) and the tens place (value 50), requiring students to recognize that 500 is 10 times 50. Choice B is correct because calculating that 500 is 10 times 50, demonstrating understanding that adjacent place values have a 10-to-1 relationship. Choice C represents using 100 instead of 10 (confused with non-adjacent places), which happens when students confuse operations. To help students: Use place value charts or base-ten blocks to show that 1 hundred = 10 tens, 1 thousand = 10 hundreds. Emphasize the pattern: moving one place to the left multiplies by 10, moving one place to the right divides by 10. Practice with division: 700 ÷ 70 = 10, 5,000 ÷ 500 = 10, 30 ÷ 3 = 10 (always 10 for adjacent places). Use numbers with repeating digits (4,440, 7,777) to make the relationship clear. Point out that the DIGIT stays the same, but the VALUE changes by 10 times. Watch for: students who subtract instead of divide, students who use 100 for the relationship (that's for places two positions apart), and students who give the digit value instead of the multiplicative relationship.
Question 11
What is 800÷80?
- 10 (correct answer)
- 720
- 100
- 0.1
Explanation: The correct answer is A, 10, because 800÷80=10. Choice B comes from subtracting instead of dividing. Choice C confuses the place-value pattern and adds an extra zero. Choice D flips the division, finding 80÷800 instead. Question 12
What is 6,000÷600?
- 10 (correct answer)
- 9
- 100
- 0.1
Explanation: 6,000 ÷ 600 = 10, because 600 × 10 = 6,000. Choice B is one less than the correct quotient. Choice C would be the result of dividing by 60 instead of 600. Choice D confuses division with finding a fraction less than one.
Question 13
In the number 2,460, the digit 4 is in the hundreds place. If that digit moved one place to the right, into the tens place, what value would it represent there?
- 4
- 400
- 40 (correct answer)
- 4,000
Explanation: In 2,460, the digit 4 is in the hundreds place, so it represents 400. Moving one place to the right puts it in the tens place, where it represents 40, one-tenth of its original value. Choice A gives the digit's face value rather than its place value. Choice B repeats the original hundreds-place value without shifting it. Choice D multiplies by 10 instead of dividing by 10. Question 14
Study this pattern: 50÷5=10, 500÷50=10, 5,000÷500=10. Based on place value understanding, what should come next in this pattern?
- 500,000÷50,000=10 because this maintains the same digit pattern throughout
- 50,000÷5,000=100 because we're now in the ten-thousands place
- 5,000÷5=1,000 because this shows the relationship across multiple places
- 50,000÷5,000=10 because the pattern continues with each number being 10 times larger (correct answer)
Explanation: When you see division patterns like this, focus on how the numbers change while the quotient stays the same. Let's examine what's happening in each step of the given pattern.
In 50÷5=10, 500÷50=10, and 5,000÷500=10, notice that both the dividend (first number) and divisor (second number) are multiplied by 10 each time. When you multiply both numbers in a division problem by the same amount, the answer stays the same. This is why all three equal 10.
Following this pattern, the next step should have 50,000÷5,000=10. Both numbers are again 10 times larger than the previous step, maintaining the same relationship.
Answer D correctly identifies this pattern. Answer A jumps too far ahead by making both numbers 10 times larger than what the next logical step should be. Answer B breaks the pattern entirely by changing the divisor incorrectly, which gives a quotient of 100 instead of 10. Answer C disrupts the pattern by keeping the divisor as 5 instead of following the sequence where the divisor should be 5,000.
The key insight is recognizing that when both the dividend and divisor increase by the same factor, the quotient remains constant. This demonstrates an important property of division and place value relationships.
Remember: In number patterns involving division, look for how both numbers change together. If they change by the same factor, the answer will stay the same. Question 15
Chen compares 700 and 70. Which statement correctly describes the relationship between them?
- 700 is 100 times 70.
- 700 is 10 times 70. (correct answer)
- 700 is 70 more than 70.
- 70 is 10 times 700.
Explanation: This question tests 4th grade understanding that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right (CCSS.4.NBT.1). Our place value system is based on groups of 10. Each place value position is 10 times the position to its right—ones become tens (×10), tens become hundreds (×10), hundreds become thousands (×10). This means that the same digit in adjacent places has values that differ by a factor of 10. Chen compares 700 and 70, where the 7 is in the hundreds place (700) and tens place (70), requiring students to recognize that 700 is 10 times 70. Choice B is correct because calculating 700 ÷ 70 = 10 shows that 700 is 10 times 70. This demonstrates understanding that adjacent place values have a 10-to-1 relationship. Choice A represents using 100 instead of 10 (confused with non-adjacent places), which happens when students don't understand multiplicative relationships between places. To help students: Use place value charts or base-ten blocks to show that 1 hundred = 10 tens, 1 thousand = 10 hundreds. Emphasize the pattern: moving one place to the left multiplies by 10, moving one place to the right divides by 10. Practice with division: 700 ÷ 70 = 10, 5,000 ÷ 500 = 10, 30 ÷ 3 = 10 (always 10 for adjacent places).
Question 16
Marcus says, "300 is 10 times 30." Is Marcus correct?
- Yes, because 300÷30=10. (correct answer)
- Yes, because 300+30=10.
- No, because 300÷30=100.
- No, because 300−30=10.
Explanation: Dividing 300 by 30 gives 10, confirming that 300 is indeed 10 times as many as 30, so Marcus is correct. Choice B uses addition instead of division, which does not test the times-as-many relationship. Choice C reflects a division error, since 300 divided by 30 is 10, not 100. Choice D uses subtraction, which also does not test a multiplicative comparison.
Question 17
Keisha says the value 500 is 10 times the value 50 because the 5 moved one place left. Is Keisha correct?
- No, because 500÷50=100. (correct answer)
- No, because 500−50=10.
- Yes, because 500÷50=10.
- Yes, because the digit is 5 in both numbers.
Explanation: This question tests 4th grade understanding that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right (CCSS.4.NBT.1). Our place value system is based on groups of 10. Each place value position is 10 times the position to its right—ones become tens (×10), tens become hundreds (×10), hundreds become thousands (×10). This means that the same digit in adjacent places has values that differ by a factor of 10. For example, 7 in the hundreds place (700) is 10 times the 7 in the tens place (70). In this problem, the values 500 (5 hundreds) and 50 (5 tens) require students to recognize that 500 is 10 times 50, as the digit 5 moves one place to the left. Choice A is correct because dividing the larger value by the smaller value: 500 ÷ 50 = 10, demonstrating understanding that adjacent place values have a 10-to-1 relationship. Choice B represents using 100 instead of 10 (confused with non-adjacent places), which happens when students confuse operations. To help students: Use place value charts or base-ten blocks to show that 1 hundred = 10 tens, 1 thousand = 10 hundreds. Emphasize the pattern: moving one place to the left multiplies by 10, moving one place to the right divides by 10. Practice with division: 700 ÷ 70 = 10, 5,000 ÷ 500 = 10, 30 ÷ 3 = 10 (always 10 for adjacent places). Use numbers with repeating digits (4,440, 7,777) to make the relationship clear. Point out that the DIGIT stays the same, but the VALUE changes by 10 times. Watch for: students who subtract instead of divide, students who use 100 for the relationship (that's for places two positions apart), and students who give the digit value instead of the multiplicative relationship.
Question 18
Compare the values in 3,330. How many times greater is the value of the digit 3 in the hundreds place than the digit 3 in the tens place?
- 3 times
- 30 times
- 10 times (correct answer)
- 100 times
Explanation: The digit 3 in the hundreds place has a value of 300, and the digit 3 in the tens place has a value of 30, and 300 divided by 30 is 10, so the hundreds digit is 10 times greater, making Choice C correct. Choice A, 3 times, mistakenly compares the digits themselves instead of their place values. Choice B, 30 times, is just the value of the tens digit alone, not the ratio between the two values. Choice D, 100 times, would result from comparing the hundreds place to the ones place instead of the tens place.
Question 19
In the number 5,550, the digit 5 in the hundreds place represents how many times what the digit 5 in the tens place represents?
- 10 (correct answer)
- 5
- 11
- 50
Explanation: This question tests 4th grade understanding that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right (CCSS.4.NBT.1). Our place value system is based on groups of 10. Each place value position is 10 times the position to its right—ones become tens (×10), tens become hundreds (×10), hundreds become thousands (×10). This means that the same digit in adjacent places has values that differ by a factor of 10. In the number 5,550, the digit 5 in the hundreds place (value 500) and the tens place (value 50), requiring students to calculate 500 ÷ 50. Choice B is correct because dividing the larger value by the smaller value: 500 ÷ 50 = 10. This demonstrates understanding that adjacent place values have a 10-to-1 relationship. Choice C represents using the digit instead of the multiplicative relationship, which happens when students give the digit value (5) rather than how many times greater one place is than another. To help students: Use place value charts or base-ten blocks to show that 1 hundred = 10 tens, 1 thousand = 10 hundreds. Emphasize the pattern: moving one place to the left multiplies by 10, moving one place to the right divides by 10. Point out that the DIGIT stays the same, but the VALUE changes by 10 times.
Question 20
Look at this pattern: 9×1=9, 9×10=90, 9×100=900. Based on place value relationships, which statement explains why 900÷90 equals 10?
- Because 9 in the hundreds place represents 10 times what 9 represents in the tens place (correct answer)
- Because 900 has two more zeros than 90, making it 100 times larger
- Because 9×100=900 and 9×10=90, so 100÷10=10
- Because the hundreds place is always 10 more than the tens place in any number
Explanation: This directly applies the place value relationship: a digit in one place represents 10 times what it represents in the place to its right. Here, 9 in the hundreds place (900) represents 10 times what 9 represents in the tens place (90). Choice B incorrectly suggests 900 is 100 times larger than 90. Choice C shows the multiplication pattern but doesn't explain the place value relationship. Choice D incorrectly describes place values as being '10 more' rather than '10 times' what the place to the right represents.