Grade 5 Math Practice Test: Comparing, Ordering and Rounding Decimals
- Comparing, Ordering and Rounding Decimals
- 10 questions
- 12 minutes
This test practices reading, writing, comparing, ordering and rounding decimals to the thousandths place. Tip: line the numbers up by their decimal points and compare place by place from the left.
Tap an option to mark your answer. You can change your mind, or tap the same option again to leave the question blank. The correct answers and explanations appear when you finish the test.Tap an option to answer; tap it again to leave the question blank.
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Question 1
Which shows 4.07 written in words?
Correct answer: D
The 0 is in the tenths place and the 7 is in the hundredths place, so 4.07 is four and seven hundredths. "Four and seven tenths" would be 4.7.
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Question 2
What number is shown in expanded form?
3 × 10 + 6 × 1 + 2 × 110 + 5 × 1100
Correct answer: D
3 tens and 6 ones make 36, 2 tenths is 0.2 and 5 hundredths is 0.05, so the number is 36.25. Writing 36.52 swaps the tenths and hundredths digits.
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Question 3
Which comparison is true?
Correct answer: C
0.6 is the same as 0.60, and 60 hundredths is more than 58 hundredths. A number with more digits is not always greater: 0.45 is less than 0.50, and 0.300 equals 0.3.
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Question 4
Which list is in order from least to greatest?
Correct answer: D
Written to thousandths the numbers are 0.080, 0.800, 0.808 and 0.880, so 0.08 is least and 0.88 is greatest. 0.808 is just a little more than 0.8, not less.
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Question 5
Round 12.649 to the nearest hundredth.
Correct answer: C
The hundredths digit is 4 and the digit after it is 9, so the 4 rounds up to 5: 12.65. 12.6 and 12.7 are rounded to the nearest tenth instead.
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Question 6
Round 5.96 to the nearest tenth.
Correct answer: B
The hundredths digit 6 is 5 or more, so 9 tenths rounds up to 10 tenths, which makes the number 6.0. Answering 5.9 ignores the rounding up.
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Question 7
A number rounded to the nearest tenth is 8.4. Which could be the number?
Correct answer: B
8.36 is between 8.3 and 8.4 and its hundredths digit is 6, so it rounds up to 8.4. 8.34 rounds down to 8.3, and 8.46 rounds up to 8.5.
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Question 8
Four runners ran the same race. Their times were: Ana 12.45 seconds, Ben 12.5 seconds, Cy 12.38 seconds and Dee 12.4 seconds.
Who ran the fastest?
Correct answer: A
The fastest runner has the least time. Written to hundredths the times are 12.45, 12.50, 12.38 and 12.40, and 12.38 is the least. Ben is the slowest, not the fastest.
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Question 9
In the number 7.385, which digit is in the hundredths place?
Correct answer: A
After the decimal point come tenths (3), hundredths (8) and thousandths (5). The 5 is in the thousandths place.
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Question 10
Which number is between 2.3 and 2.4 on a number line?
Correct answer: C
2.3 = 2.30 and 2.4 = 2.40, and 2.35 lies between them. 2.04 is less than 2.3 because it has 0 tenths.
Questions you leave blank are not counted as wrong.
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