Multiply and Divide a Decimal by Powers of 10

True or false: When you divide by a power of 10 the decimal moves to the left.

• true

• false

Fill in the blank by typing in the missing word only: When you multiply by a power of 10 the decimal moves to the _______.

What is 0.025 x 10²?

• 2.5

• 25,000

• 25

• .25

What is 7,547 ÷ 10³?

• 754.7

• 0.7547

• 75.47

• 7.547

2.36 × 1,000 =

• 0.0236

• 0.00236

• 2,360

• 23,600

Powers of Ten

When we multiply by powers of ten, we move the decimal to the ​ (a)   .

When we divide by powers of ten, we move the decimal to the ​ (b)   .

• right

• left

2.34 ÷ 10¹

• 0.234

• 2.34

• 23.4

• 0.0234

6.3 ÷ 100 =

• 6.3

• 63

• 0.63

• 0.063

5.02 x 0.1

• 5.02

• 50.2

• 0.0502

• 0.502

Which expressions are equivalent to 8.3? Choose all the correct answers (2).

•  83.0÷ 10

• 0.83 x 10

• 0.83 x 100

• 0.83 ÷ 10