Addition/Subtraction
3.5 x 9 =
31.5
13.8 divide 3 =
4.6
For which 2 operations (addition, subtraction, multiplication, division) do you need to line up the decimal points?
Addition and Subtraction
1.4 x 10 =
14
33.6 divide 5 =
6.72
For which operations (addition, subtraction, multiplication, division) do you need to count the number of digits after the decimal points?
Multiplication
54.8divide10=
5.48
9.6 + 0.18 =
9.78
6.72 divide 12 =
0.56
What number do you need to add to the dividend (after the decimal point) when there are no more numbers to bring down?
0
0.659 x 100 =
65.9
43.03 - 6.91 =
36.12
0.07 x 0.4
0.028
12.2 divide 4=
3.05
When dividing by a power of 10 (10, 100, 1000), which way do you move the decimal point?
To the left
4.33divide100 =
0.0433
12 - 4.61 =
7.39
.23 x 6.7
1.541
3.75divide15=
0.25
When multiplying by a 100, how many places and which way do you move the decimal point?
Right two
290