Mastering Multiplication and Division with Powers of Ten

This video tutorial explains how to multiply and divide numbers by powers of ten. It covers the concept of powers and exponents, demonstrating how the decimal point moves when multiplying or dividing by ten, one hundred, and other powers of ten. The tutorial includes examples with whole numbers and decimals, emphasizing the change in place value. It concludes with a recap and practice problems to reinforce the concepts.

What is 10 to the first power equal to?

• 1000

• 100

• 1

• 10

When you multiply 1.2 by 10, what is the result?

• 0.12

• 120

• 12

• 1.2

How many places do you move the decimal point when multiplying 1.2 by 100?

• 3

• 2

• 4

• 1

What happens to the decimal point when you divide by powers of ten?

• Moves to the right

• Moves to the left

• Disappears

• Stays the same

What is the result of dividing 1.2 by 10?

• 0.12

• 0.012

• 1.2

• 12

If you divide 1.2 by 100, what is the result?

• 0.012

• 0.12

• 12

• 1.2

What is 7.52 multiplied by 100?

• 75.2

• 0.752

• 752

• 7.52

How many places do you move the decimal point when multiplying 7.52 by 10 squared?

• 3

• 1

• 4

• 2

What is the result of dividing 8.6 by 10?

• 0.086

• 86

• 8.6

• 0.86

When you multiply by powers of ten, which direction does the decimal point move?

• Disappears

• Left

• Right

• Stays the same