Multiplying by Powers of 10

What is the main topic of this math lesson?

• Subtracting integers

• Dividing decimals

• Multiplying by powers of 10

• Adding fractions

What does an exponent indicate?

• The number of times a number is subtracted from itself

• The number of times a number is multiplied by itself

• The number of times a number is divided by itself

• The number of times a number is added to itself

What is 10 to the power of 3?

• 1000

• 100

• 10000

• 10

What is the result of 6 times 100?

• 60

• 600

• 6000

• 60,000

Why is it important to place commas every three zeros?

• To make the number look bigger

• To make the number smaller

• To help in reading the number

• To make the number more complex

What is 13 times 10 to the power of 2?

• 130

• 1300

• 13000

• 130000

What is 13 times 10 to the power of 3?

• 1300

• 130

• 13000

• 130000

How many zeros are added when multiplying 250 by 10 to the power of 5?

• 7

• 6

• 5

• 4

What is the result of 250 times 10 to the power of 5?

• 2,500,000,000

• 250,000,000

• 2,500,000

• 25,000,000

What should you do if a number already has a zero at the end when multiplying by a power of 10?

• Ignore the existing zero

• Add the existing zero to the total number of zeros

• Subtract the existing zero from the total number of zeros

• Multiply the existing zero by the power of 10