Summary
How powers of ten work -- multiplying and dividing by 10, 100, and 1000 and seeing the pattern of moving the decimal point. Mr. J connects it to place value.
Viewer safety
All ages
Our rating is a quick teacher-to-teacher guide — preview before showing.
Teaching resources
Discussion questions
Multiplying or dividing by a power of ten shifts every digit to a new place value.
- What happens to a number when you multiply it by 10?
- Which way does the decimal point move when you divide by 100?
- How is this a pattern, not a trick?
Quick work-a-long
Words to know: power of ten, place value, decimal point
- Solve 3.4 x 100.
- Solve 250 divided by 10.