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Grade 4 · Math · Decimals

4th Grade Add and Subtract Decimals worksheets

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Add and Subtract Decimals

Grade 4 Math Worksheet

NameDate

Add or subtract.

  1. 4.2 + 7.9 =

  2. 9.86 − 2.86 =

  3. 0.53 + 4.22 =

  4. 6.67 − 2.8 =

  5. 5.69 + 1.72 =

  6. 9.04 − 0.03 =

  7. 6.8 + 8.8 =

  8. 4.34 − 3.29 =

  9. 0.1 + 1.61 =

  10. 4.27 − 1.93 =

  11. 4.67 + 8.3 =

  12. 9.2 − 3.87 =

  13. 0.79 + 3.3 =

  14. 5.5 − 0.4 =

  15. 8.7 + 5.4 =

  16. 5.37 − 1.56 =

  17. 1.8 + 6.81 =

  18. 9.57 − 3.39 =

  19. 2.5 + 5.7 =

  20. 9.4 − 6.9 =

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4th Grade Add and Subtract Decimals worksheet 1 – printable PDF
Download PDF: 123456

About this worksheet

Adding and subtracting decimals works like whole numbers, once the decimal points are lined up. Each sheet has ten sums and ten differences, in turn, and your child writes each answer on the line. Building Confidence uses tenths, On Level uses tenths and hundredths together, and Challenge Me adds two-digit whole numbers.

What your child will learn

  • Line up decimal points
  • Add decimals to hundredths
  • Subtract decimals to hundredths
  • Keep the zeros in the right places

Common Core standard: 4.NF.C.5

Worked example

0.20 + 0.09 = 0.29 and 3.5 - 1.25 = 2.25.

Common mistake

Lining the numbers up on the right instead of the decimal point, so 3.5 + 1.25 becomes 1.60.

Helpful hint

Write the decimals under each other with the points in a line, and add zeros if it helps.

Questions parents ask

What is the most common mistake with add and subtract decimals?

Lining the numbers up on the right instead of the decimal point, so 3.5 + 1.25 becomes 1.60.

How can I help my child with add and subtract decimals?

Write the decimals under each other with the points in a line, and add zeros if it helps.

Are these 4th grade math worksheets free to print?

Yes. All 6 printable versions on this page are free to download and print, with no account needed.

Similar: Decimals to Hundredths · Compare Decimals

More 4th grade decimals

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