Multiplication Patterns
Which direction does the decimal move when you multiply by 10?
Right
45.6 x 0.01
.456
How many times do you move the decimal?
4.4 x 2
1/once
What is the first step you need to do before multiplying a decimal? And what do you do after finding the answer?
Move the decimal to the end of the number and move it back when you solve the problem.
3.45 x 1.3
4.485
Which direction does the decimal move when you multiply by 0.1?
Left
13.4 x 103
134,000
5.67 x 3
17.01
2.4 x 2.1
5.04
What is wrong with the problem?
4.5 x 1.3 = 585
The decimal was not moved back twice in the product.
How many times does the decimal move when you multiply by .01?
Two times/twice
34.2 x 102
3,420
24.2 x 5
121
3.45 x 1.2
4.14
What is wrong with the problem?
3.45 x 3.3 = 113.85
23.1 x 10
230
52.4 x .1
5.24
235.6 x 4
942.4
23.45 x 2.6
60.97
3.452 x 3.4
11.7368
1.45 x .1
.145
45.67 x 105
4,567,000
45.26 x 5
226.3
12.45 x 7.1
88.395
456.3 x 2.3
1,049.49