Estimating Products Flashcard

Estimating products involves rounding numbers to make multiplication easier and quicker, allowing us to find an approximate answer.

To round a number to the nearest ten, look at the digit in the ones place. If it's 5 or more, round up; if it's 4 or less, round down.

1800

3000

9 X 30 is greater.

2900

7 X 80 is greater.

Estimating products helps to quickly assess the size of the answer without calculating the exact product.

A product is the result of multiplying two or more numbers together.

You can check if your estimation is reasonable by comparing it to the actual product.