Addition
13.8 / 3 =
4.6
For which 2 operations (addition, subtraction, multiplication, division) do you need to line up the decimal points?
Addition and Subtraction
33.6 / 5 =
6.72
For which operations (addition, subtraction, multiplication, division) do you need to count the number of digits after the decimal points?
Multiplication
9.6 + 0.18 =
9.78
43.03 - 6.91 =
36.12
156 / 5 =
31.2
What number do you need to add to the dividend (after the decimal point) when there are no more numbers to bring down?
0
1.23 + 8
9.23
12 - 4.61 =
7.39
0.07 x 0.4
0.028
12.2 / 6.1
2
When multiplying by a decimal, which way do you move the decimal point?
To the left
8 + 2.45
10.45
62 - 48.6
13.4
.23 x 6.7
1.541
1.18 / 5.9
0.2
When multiplying by a 100, how many places and which way do you move the decimal point?
Right two