Multiplying and Dividing by Power of 10

Which of these is equivalent to 10^3

• 10

• 100

• 1,000

• 10,000

Which of these is equivalent to 1,000,000

• 10^3

• 10^4

• 10^5

• 10^6

When we divide a number by a positive power of 10, we move the decimal point which direction?

• left

• right

• either

• We don't move the decimal point

Which of these decimal numbers are equivalent to 87?

• 0.87

• 8.70

• 87.00

• 870.0

What is 8.5 x 10^2

• 850

• 8,500

• 85

• 8.5

What is 0.749241 x 10^5

• 74.9241

• 749.241

• 7,492.41

• 74,924.1

• 3,700

• 37

• 0.37

• 0.037

• 67,980

• 0.006798

• 0.0000006798

• 0.0000000006798

Which on these contains an exponent?

• 10 x 10

• (10+5)(10-5)

• 10^5

• 100,000

When we multiply a number by a positive power of 10, we move the decimal point which direction

• left

• right

• either

• We don't move the decimal point