Adding Decimals
What is the rule for adding (and subtracting) decimals?
Line up the decimal points in the addends and bring straight down into the sum (Or difference).
8.7 - 3.2 =
5.5
Solve using Mental Math:
0.2 x 0.09 =
0.018
18.72 / 6 =
3.12
4.6 + 3 =
7.6
15.6 - 7.8 =
7.8
Solve using Mental Math:
0.003 x 0.05 =
0.00015
14.5 / 4 =
12.75 + 6.8 =
19.55
24 - 8.75 =
15.25
3.6 x 4 =
14.4
8.4 / 0.7 =
12
38 + 14.967 =
52.967
53.204 - 17.86 =
35.344
2.45 x 1.6 =
3.92
6.24 / 0.6 =
10.4
126.084 + 37.9586 =
164.0426
100 - 46.7859 =
53.2141
0.0738 x 0.24 =
0.017712
4.35 / 0.12 =
36.25