Adding and subtracting decimals works like whole numbers once the decimal points are lined up, so tenths meet tenths and hundredths meet hundredths. This fifth grade sheet has twenty short problems, some sums and some differences, with one or two digits after the decimal point.
Because every problem looks the same, a child can build speed and watch for the usual slip of lining up the last digits instead of the points. Each version has different numbers, and the answer key shows every answer with the shortest correct decimal.
What your child will learn
Line up decimal points
Add tenths and hundredths
Subtract with decimals
Write the answer as a decimal
Common Core standard: 5.NBT.B.7
Worked example
9.7 + 1.70 = 11.4, because 9.70 + 1.70 = 11.40.
Common mistake
Lining up the last digits instead of the decimal points.
Helpful hint
Write both numbers with the same number of places, then add or subtract.