Multiplying and Dividing by Powers of 10

When multiplying a decimal by 10, the decimal place moves:

• one place to the right

• two places to the right

• one place to the left

• two places to the left

When multiplying a decimal by 100, the decimal place moves:

• one place to the right

• two places to the right

• one place to the left

• two places to the left

When dividing a decimal by 100, the decimal place moves:

• one place to the right

• two places to the right

• one place to the left

• two places to the left

52.5 × 1000

• 52500

• 5250

• 525

• 52.500

• 0.00525

42.5 × 1000

• 42500

• 4250

• 425

• 0.42500

• 0.00425

6.3 ÷ 100

• 0.063

• 0.0063

• 0.63

• 0.00063

• 0.6300

30.4 ÷ 100

• 0.304

• 0.0304

• 0.00304

• 3.04

• 0.0304

2.785 ÷ 1000

• 0.002785

• 0.02785

• 0.2785

• 2.785

• 2785

243 x 10²

• 2,430

• 243

• 24,300

• 2.43

66.79 × 10 ² =

• 667.9

• 0.6679

• 6.679

• 6679