Multiply or Divide by 10
6000 / 10
600
16 X 200
3, 200
30 X 2000
60,000
What is the opposite of addition?
Subtraction
830 / 10
83
6,400 / 100
64
25 X 2000
50, 000
What is the opposite of multiplication?
Division
800 X 20
16 000
42,000 / 600
70
20 000 / 2000
10
Which two operations result in a number getting bigger?
Addition and multiplication
809 X 10
8,090
150 X 200
30,000
810,000 / 1000
810
Which two operations results in a number getting smaller?
Subtraction and division
9000 / 30
300
84,000 / 100
840
12, 000 / 2000
6
What happens when you multiply a number by 10, 100, or 1,000?