Estimating Products Flashcard

Front

What is estimating products?

Back

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

Front

How do you round numbers to the nearest ten?

Back

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.

Front

What is the estimated product of 49 and 37 when rounded to the nearest ten?

Back

1800

Front

What is the estimated product of 73 and 46 when rounded to the nearest ten?

Back

3000

Front

Which product is greater: 9 X 25 or 9 X 30?

Back

9 X 30 is greater.

Front

What is the product of 5 and 417 when rounded to the nearest hundred?

Back

2900

Front

Which product is greater: 7 X 80 or 6 X 80?

Back

7 X 80 is greater.

Front

What is the purpose of estimating products?

Back

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

Front

What is a product in multiplication?

Back

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

Front

How can you check if your estimation is reasonable?

Back

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