Adding
6.8 + 5.3 =
12.1
45.8 - 32.5 =
13.3
5.6 xx 3.1 =
17.36
1.92/0.6=
Do you need to line up the decimal points for addition?
Yes
14.3 + 33.65 =
47.95
16.34 - 12.78 =
3.56
1.23 xx 8=
9.84
0.09/4.5=
0.02
Do you need to line up the decimal points for subtraction?
Yes
15 + 31.8 =
46.8
7.3 - 2.887 =
4.413
0.15xx6.5 =
0.975
1.008/0.12=
8.4
Do you need to line up the decimal points for multiplication?
No
9.01 + 88.99 =
70 - 53.2 =
16.8
8.71xx4.12=
35.8852
26.001/0.81=
Do you need to line up the decimal points for division?
No
0.056 + 12.123 =
12.179
14.5 - 0.781 =
13.719
0.0345xx1.9=
0.06555
30.9/2.5=
12.36
For division, when moving the decimal point, is the number of places based on the inside number or the outside number?
Outside