Subtracting decimals and decimal stories
Answers are for parents and teachers.
1
Subtract 6.004 − 2.9.
6.004 − 2.900 = 3.104.
2
Estimate 34.8 − 17.65 by rounding to whole numbers, then subtract exactly.
Estimate 35 − 18 = 17. Exact: 34.80 − 17.65 = 17.15.
3
A bag costs 87.5 LE. Salma pays with 100 LE. How much change does she get?
100 − 87.5 = 12.5 LE.
4
A bottle has 2.5 L of water. Jana drinks 0.35 L and Omar drinks 0.4 L. How much is left?
Drunk: 0.35 + 0.4 = 0.75 L. Left: 2.5 − 0.75 = 1.75 L.
5
Find the missing number: 7.3 − □ = 4.85.
7.30 − 4.85 = 2.45. Check: 7.3 − 2.45 = 4.85.