Decimal Multiplication and Division

Front

What is decimal multiplication?

Back

Decimal multiplication is the process of multiplying numbers that have decimal points. It involves aligning the numbers, ignoring the decimal points during multiplication, and then placing the decimal point in the product based on the total number of decimal places in the factors.

Front

What is decimal division?

Back

Decimal division is the process of dividing numbers that have decimal points. It involves moving the decimal point in the divisor to make it a whole number and adjusting the dividend accordingly.

Front

How do you multiply a decimal by 10, 100, or 1000?

Back

To multiply a decimal by 10, 100, or 1000, move the decimal point to the right by as many places as there are zeros in the multiplier. For example, 2.5 × 10 = 25.0, 2.5 × 100 = 250.0.

Front

How do you divide a decimal by 10, 100, or 1000?

Back

To divide a decimal by 10, 100, or 1000, move the decimal point to the left by as many places as there are zeros in the divisor. For example, 25.0 ÷ 10 = 2.5, 250.0 ÷ 100 = 2.5.

Front

What is the result of 95.20 ÷ 17?

Back

5.60

Front

What is the result of 24.5 ÷ 3.5?

Back

7

Front

What is the result of 228 ÷ 0.03?

Back

7,600

Front

What is 28.193 × 0.01?

Back

0.28193

Front

How do you calculate the total cost of multiple items?

Back

To calculate the total cost, multiply the price of each item by the quantity purchased and then add the costs together. For example, if jeans cost $49.95 each and 3 pairs are bought, the cost is 3 × 49.95.

Front

What is the total cost if Marilyn buys 3 pairs of jeans for $49.95 each and 2 shirts for $24.99 each?

Back

$199.83