Intro to Multiply Greater Numbers by Power of 10

Multiple Choice

Find 9 x 1000 written with exponents instead

(HINT: COUNT YOUR ZEROS)

• 9 X 10^2

• 9 X 10^3

• 9 X 10^4

• 9 X 10^5

​How do we multiply by units of 10?

​We poof the zeros.

​​​What does that mean?

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​Look at this problem: 150 x 1000

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​How many zeros are there? Four. Move them all behind the equal sign, then multiply the numbers left.

Multiple Choice

Some questions are tricky, and you need to count the zeros very carefully. 

50 x 600

• 300

• 3,000

• 30,000

• 300,000

Open Ended

The students read 120 minutes a day for 5 days a week. Write an equation to find how many minutes they read for 60 days?