Printable Adding Decimals Worksheets
Printable adding decimals worksheets for 5th grade, with an answer key on every sheet. The sets below cover 5 different skills, so you can start where your child actually is. Available as speed drills and word problems.
Targeted Practice by Skill
Add with one decimal digit
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Add with one decimal digit
Decimals Adding Decimals 01
Add with two decimal digits
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Add with two decimal digits
Decimals Adding Decimals 02
Add with three decimal digits
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Add with three decimal digits
Decimals Adding Decimals 03
Add in columns
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Missing decimal addend
Math.decimals.adding Decimals.05
About Adding Decimals
What this skill is
Adding decimals extends column addition to tenths, hundredths, and thousandths, requiring strict decimal point vertical alignment before adding place value columns.
When children learn it
Adding decimals is taught in 4th and 5th grade, aligned to Common Core standard 5.NBT.B.7.
Teaching Tips
- Line up decimal points straight down vertically before adding.
- Fill empty right-hand decimal places with placeholder zeros (3.40 + 2.15).
Common Mistakes
- Misaligning decimal points vertically when numbers have different decimal digit counts (like adding 3.4 + 2.15).
- Forgetting decimal points in final sum answers.