Multiplying Whole Numbers by Powers of Ten

The video tutorial explains how to multiply whole numbers by powers of 10, using base 10 notation. It demonstrates the process by adding zeros equivalent to the power of 10. Several examples are provided, such as multiplying 7 by 10 to the first power, resulting in 70, and multiplying 8 by 10 to the fourth power, resulting in 80,000. The tutorial also includes a historical fact about the domestication of pigs in 70,000 BC, illustrating how to express this number using powers of 10.

What is the base number in the context of multiplying by powers of 10?

• 2

• 5

• 10

• 100

When multiplying 7 by 10 to the first power, how many zeros are added to 7?

• Three

• Four

• Two

• One

What is the result of multiplying 7 by 10 to the second power?

• 70

• 7000

• 70,000

• 700

How many zeros are added when multiplying 8 by 10 to the fourth power?

• Five

• Three

• Two

• Four

What is the result of multiplying 8 by 10 to the fourth power?

• 800

• 8,000

• 80,000

• 800,000

How many zeros are added when multiplying 9 by 10 to the fifth power?

• Six

• Five

• Three

• Four

What is the result of multiplying 9 by 10 to the fifth power?

• 9,000,000

• 90,000,000

• 900,000

• 90,000

In what year were the first pigs domesticated according to the video?

• 70,000 BC

• 7,000 BC

• 70 BC

• 700 BC

How can 70,000 BC be written using powers of 10?

• 7 x 10^3

• 7 x 10^4

• 7 x 10^5

• 7 x 10^6