Multiply and Divide by Powers of 10

What happens to the number of zeros as a WHOLE NUMBER is multiplied by a Power of 10?

• If you look at the exponent, it will tell you how many zeros are in your number

• The whole number will tell me how many zeros are in my product.

• I will find my product as a multiply by a power of 10

How many zeros are in the product of 3,200 x 100?

• 2

• 3

• 4

• 5

What number is 1000 times greater than 345.670

• 34.5670

• 3,567

• 345,670

• 345.680

What happens to a number when it is moved one place to the left?

• the number is divided and the number gets smaller

• the number is multiplied and it gets larger

• the number is multiplied and it gets smaller

• the number is divided and it gets larger

2300 ÷ 10² =

• 2,300

• 230

• 23

321,000 ÷ 10³ =

• 321

• 3,210

• 32,100

Which operation and power of ten makes 317.5 equal to 3.175?

• multiply 317.5 by 10²

• multiply 317.5 by 10³

• divide 317.5 by 10³

• divide 317.5 by 10²

87.5 ÷ 10²

• 87.5

• 8.75

• 0.875

370.2 ÷ 10²

• 3.702

• 37.02

• 370.2

• 0.3702

Explain how you move the decimal in the following problem.

5.89 x 10³

• three places to the left

• three places to the right

• 1 place to the right

• 1 place to the left