.5
Decimals
Free, printable, and unlimited. Add and subtract decimals to the tenths place — then download a clean PDF and answer key.
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Decimals in Grade 4
Fourth grade introduces decimals as another way to write tenths and hundredths — closely tied to fractions and to money. A key skill is adding and subtracting decimals by lining up the decimal points so each place value matches. These worksheets focus on tenths, the Grade 4 starting point.
3.4 + 2.7 = ?
- Line up the decimal points.
- Add the tenths: 4 + 7 = 11 tenths — write .1, carry 1.
- Add the ones: 3 + 2 + 1 = 6 → 6.1.
How to use these worksheets
- Always line up the decimal points before adding or subtracting.
- Relate decimals to money (0.5 is like 50 cents) to build intuition.
- Keep the answer key (page 2) for quick marking.
- Tick Show answers to review the place values.