Grade 5 Math · Decimal Addition and Subtraction
Build Grade 5 Math skills with five 10-question practice tests on decimal addition, decimal subtraction, place-value alignment, estimation, zeros, and real-world measurement problems.
These Grade 5 Math practice tests help students add and subtract decimals accurately. Students practice aligning decimal points, using zeros as placeholders, estimating, solving measurement and money problems, and checking exact answers with place-value reasoning.
Write each number with matching place values before calculating. Add zeros when useful, estimate to check reasonableness, and label units in measurement and money problems.
For more Grade 5 Math practice, return to the Grade 5 Math category.
1. Test
A 10-question Grade 5 Math practice test on adding and subtracting decimals, place-value alignment, estimation, zeros, and real-world measurement problems.
Align decimal points carefully, use place-value reasoning, calculate the exact result, and estimate when the question asks for an approximate answer.
Please select an answer first.
Correct answer: A
The correct answer is 7.05.
Align the decimal points and add: 4.75 + 2.30 = 7.05.
Please select an answer first.
Correct answer: B
The correct answer is 20.27.
Write 16.80 + 3.47 and add to get 20.27.
Please select an answer first.
Correct answer: C
The correct answer is 1.825.
Write 1.200 + 0.625; the sum is 1.825.
Please select an answer first.
Correct answer: D
The correct answer is 32.946.
Write 25.090 + 7.856 and add by place value to get 32.946.
Please select an answer first.
Correct answer: A
The correct answer is 3.96.
Write 3.40 + 0.56 = 3.96.
Please select an answer first.
Correct answer: B
The correct answer is 12.995.
Write 12.005 + 0.990 and add to get 12.995.
Please select an answer first.
Correct answer: C
The correct answer is 1.25.
Subtract 8.75 from 10.00: 10.00 − 8.75 = 1.25.
Please select an answer first.
Correct answer: D
The correct answer is 130.25.
Write 100.50 + 29.75 = 130.25.
Please select an answer first.
Correct answer: A
The correct answer is 9.
The exact sum is 9.00, so the estimate is 9.
Please select an answer first.
Correct answer: B
The correct answer is Each place value is combined with the matching place value..
Aligning decimal points aligns ones, tenths, hundredths, and thousandths.
Alignment places ones, tenths, hundredths, and thousandths in matching columns so each place value is combined correctly.
Yes. Zeros at the end of a decimal do not change its value and can help align place values.
The page includes five mini tests with 10 questions each, for 50 Grade 5 Decimal Addition and Subtraction questions in total.
