Rules of Multiplication by 10, 100 and 1000

What happens when we multiply a number by 10, 100 or 1000?

• The product gets smaller

• The product gets larger

8 hundreds x 10

• 810

• 800

• 8,000

• 80

65 x 100

• 65

• 650

• 6,500

• 65,000

8002 x 100

• 8,020

• 800,200

• 8,200

• 80,200

39006 x 10

• 309,600

• 390,060

• 3,090,600

• 390,600

To multiply a decimal by 10, 100 0r 1000.

• Move the decimal point to the left based on the number of zeros.

• Move the decimal point to the right based on the number of zeros

• Move the decimal point to the right and left based on the number of zeros

• Do not move the decimal point based on the number of zeros

How many shifts does a number make when multiplying by 1000?

• 1 shift to the left

• 2 shifts to the left

• 3 shifts to the left

• 45

• 450

• 4.5

• 4500

• 140,3

• 1 403

• 14 030

• 140 300

62.3x10=

• 623
• 62.3
• 6230
• 0.623