ArithmeticForest math mission
Light the Lantern Trail
Name: Date:
Add or subtract the decimals.
112.92−8.23
215.13−11.88
35.17−0.79
43.08+18.49
57.34+18.83
613.98−2.40
72.36+14.11
813.79+8.13
91.18−0.91
104.21+9.67
Free · Grade 4–5 · Tenths and hundredths
Working on adding and subtracting decimals? Print this sheet as it is, or change the level and questions first.

The answer key prints on a separate page.
The whole difficulty of decimal addition is place value — 0.4 and 0.04 look alike but are ten times apart, so the points must sit in one column. Our sheets print in a vertical form that stacks the points for you, or a horizontal form once a child is ready to keep track alone. You choose tenths or hundredths, and every pair uses the same number of places so the columns stay honest.
Answers are computed exactly, never as rounded floating-point, so 0.1 + 0.2 is always 0.3 on the key.