Power 10 Multiply
3.64 x 10
36.4
3.5 + 2
5.5
0.5 x 4
2
3.63-:3
1.2
For which 2 operations (addition, subtraction, multiplication, division) do you need to line up the decimal points?
Addition and Subtraction
4.761 x 100
476.1
8.1 - 6.3
1.8
0.8 x 0.7
0.56
4.24-:2
2.12
For which operations (addition, subtraction, multiplication, division) do you need to count the number of digits after the decimal points?
Multiplication
536.7 x 10
5367
5 + 0.6 + 26.08
31.68
35 x 0.3
10.5
53.5-:5
10.7
What digit do you need to add to the dividend (after the decimal point) when there are no more numbers to bring down?
0
0.09 x 10,000
900
20 - 9.41
10.59
0.32 x 0.2
0.064
4.4-:0.4
11
When multiplying by a decimal, which way do you move the decimal point when placing it in your answer?
To the left
0.409 x 10,000
4,090
100 - (40 + 5.49 + 10.99)
43.52
1.2 x 5.5
6.6
64-:0.02
3,200
What's the rule when you have a decimal in a divisor?
Make the divisor a whole number.