partial product

Front

What is a partial product?

Back

A partial product is the result of multiplying a single digit of one number by the entire other number in a multiplication problem.

Front

How do you find the partial products for 4 x 28?

Back

You break down 28 into 20 and 8, then calculate (4 x 20) + (4 x 8).

Front

What is the first step in using partial products?

Back

The first step is to break down one of the numbers into its place values.

Front

What are the partial products for 6 x 84?

Back

(6 x 80) + (6 x 4) = 480 + 24 = 504.

Front

How do you round 143 to the nearest hundred?

Back

You look at the tens place (4). Since it's less than 5, you round down to 100.

Front

What is the result of 78 x 6 using partial products?

Back

(70 x 6) + (8 x 6) = 420 + 48 = 468.

Front

What is the partial product of 5 x 36?

Back

(5 x 30) + (5 x 6) = 150 + 30 = 180.

Front

How do you round 36 to the nearest ten?

Back

You look at the ones place (6). Since it's 5 or more, you round up to 40.

Front

What are the partial products for 3 x 45?

Back

(3 x 40) + (3 x 5) = 120 + 15 = 135.

Front

What is the partial product of 7 x 52?

Back

(7 x 50) + (7 x 2) = 350 + 14 = 364.