Powers of 10

Front

What is the value of 43.2 multiplied by 1,000?

Back

43.2 x 1,000 = 43,200

Front

How do you multiply a decimal number by 100?

Back

To multiply a decimal by 100, move the decimal point two places to the right.

Front

What is the result of 42.8 multiplied by 100?

Back

42.8 x 100 = 4,280

Front

How do you multiply a number by 10,000?

Back

To multiply by 10,000, move the decimal point four places to the right.

Front

What is 0.372 multiplied by 10,000?

Back

0.372 x 10,000 = 3,720

Front

What is the result of dividing 17.8 by 10?

Back

17.8 ÷ 10 = 1.78

Front

How do you divide a number by 100?

Back

To divide by 100, move the decimal point two places to the left.

Front

What is 347.12 divided by 100?

Back

347.12 ÷ 100 = 3.4712

Front

What is the general rule for multiplying by powers of 10?

Back

When multiplying by powers of 10, move the decimal point to the right for positive exponents.

Front

What happens to the decimal point when dividing by powers of 10?

Back

When dividing by powers of 10, move the decimal point to the left for positive exponents.