Endless Math Sheets

Adding Decimals Worksheets

Adding decimals works just like adding whole numbers once the decimal points are lined up. The stacked layout keeps every place value in its column.

Customize
Layout
Sheet code B4JMWE
NameDate

Adding Decimals

Score / 20

Add. Line up the decimal points.

1.49.72+20.51
2.12.5+67.07
3.75.07+91.9
4.69.1+81.02
5.48.52+10.67
6.72.7+9.92
7.31.6+76.17
8.88.73+72.08
9.78.06+87.67
10.94.9+12.32
11.26.19+34.83
12.55.3+97.5
13.58.2+92.26
14.11.37+74.35
15.19.15+94.19
16.23.64+11.76
17.10.61+40.9
18.23.5+61.4
19.30.6+43.55
20.67.11+71.1
endlessmathsheets.comSheet B4JMWE

Answer keyAdding Decimals

Add. Line up the decimal points.

1.49.72+20.5170.23
2.12.5+67.0779.57
3.75.07+91.9166.97
4.69.1+81.02150.12
5.48.52+10.6759.19
6.72.7+9.9282.62
7.31.6+76.17107.77
8.88.73+72.08160.81
9.78.06+87.67165.73
10.94.9+12.32107.22
11.26.19+34.8361.02
12.55.3+97.5152.8
13.58.2+92.26150.46
14.11.37+74.3585.72
15.19.15+94.19113.34
16.23.64+11.7635.40
17.10.61+40.951.51
18.23.5+61.484.9
19.30.6+43.5574.15
20.67.11+71.1138.21
endlessmathsheets.comSheet B4JMWE

What's on this worksheet

Decimals with tenths and hundredths, such as 34.7 + 8.25. Lengths are mixed so students practice lining up the point. Each sheet comes with an answer key on a separate page.

Teaching tips

  • Fill empty places with zeros: 34.7 becomes 34.70 so both numbers have hundredths.
  • Estimate with whole numbers first: 34.7 + 8.25 is about 35 + 8 = 43.

How to use this worksheet maker

Press New worksheet for a fresh set of problems, then Print. To save a PDF instead, choose "Save as PDF" in the print window. Every sheet has a short code in the bottom corner. Copy the link to a sheet and you can print exactly the same problems again later, which is handy for retakes and for sharing with other teachers.

Common Core alignment: 5.NBT.B.7 (Grade 5).

More decimals worksheets

All decimals worksheets