Grade 4 Adding and Subtracting Decimals Worksheets
Start with eight focused practice problems, then use the answer key below to check the worksheet.
Practice Worksheet
Grade 4 Adding and Subtracting Decimals Practice
Solve each problem. Show your work.
- 1.65.4 - 61.2 = _____
- 2.11.6 + 7.3 = _____
- 3.10.5 - 9.9 = _____
- 4.47.2 + 39.5 = _____
- 5.32.9 + 29.2 = _____
- 6.52.4 + 2.4 = _____
- 7.12.4 + 2.4 = _____
- 8.80.0 + 50.0 = _____
Show answer key
- Question 1: 4.2
- Question 2: 18.9
- Question 3: 0.6
- Question 4: 86.7
- Question 5: 62.1
- Question 6: 54.8
- Question 7: 14.8
- Question 8: 130.0
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About These Worksheets
Grade 4 students work mainly with tenths and hundredths, connecting decimal operations to money and base-ten place value.
Adding and subtracting decimals worksheets help students slow down on the detail that matters most: lining up place values before calculating. The search phrase is often simple, but the skill is not just ordinary addition with a decimal point dropped in afterward. Students need to understand tenths, hundredths, and thousandths as real place-value columns, then keep those columns aligned whether the numbers have the same number of decimal places or not.
These worksheets give repeated practice with money-style amounts, measurement values, and plain decimal numbers so students can move between classroom notation and everyday contexts. Problems include sums and differences with missing trailing zeros, which helps students see why 4.5 can be written as 4.50 when the hundredths column is needed. Careful decimal addition and subtraction also prepare students for percent work, unit rates, and algebraic substitution in later grades.
Skills Practised
- Aligning decimal points before adding or subtracting
- Using zeros as placeholders in tenths and hundredths
- Adding decimals in money and measurement contexts
- Subtracting decimals with regrouping
- Estimating decimal sums and differences
Parent Tip: Have your child read each number by place value before solving, such as 'three and forty-five hundredths.' Saying the place value out loud helps prevent decimal-point alignment mistakes.