5.6 Multiply Decimals using Partial Products

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part.

Front

How do you multiply decimals using partial products?

Back

To multiply decimals using partial products, break each decimal into whole numbers and fractions, multiply each part separately, and then add the results.

Front

What is the value of 1.2 x 2.1?

Back

2.52

Front

If Anna earns $13.75 per hour and works 20 hours, how do you calculate her earnings?

Back

Multiply her hourly wage by the number of hours worked: $13.75 x 20 = $275.00.

Front

How much did Sarah spend on 2.5 meters of fabric at $6.20 per meter?

Back

Multiply the price per meter by the number of meters: $6.20 x 2.5 = $15.50.

Front

What is the value of 11.3 x 2.5?

Back

28.25

Front

How do you find the total cost of 4.5 pounds of grass seed at $1.22 per pound?

Back

Multiply the cost per pound by the total pounds: $1.22 x 4.5 = $5.49.

Front

What is a partial product in multiplication?

Back

A partial product is the result of multiplying a single digit of one number by the entire other number, used in the process of multiplying larger numbers.

Front

Why is it important to line up decimal points when multiplying?

Back

Lining up decimal points ensures that the place values are correctly aligned, which is crucial for accurate multiplication.

Front

What is the first step in multiplying decimals?

Back

The first step is to ignore the decimal points and multiply the numbers as if they were whole numbers.