partial product

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

Break 36 into 30 and 6. Then calculate: 30 x 5 = 150 and 6 x 5 = 30. Add them: 150 + 30 = 180.

The first step is to break down one or both of the numbers into their place values.

468

Rounding numbers makes them easier to work with, especially in estimation.

Look at the digit in the ones place (1). Since it's less than 5, round down to 210.

348

Multiply each part of the first number by the entire second number.

40

Add all the partial products together to get the final answer.