2-Digit Estimating Products

Front

What is estimating in multiplication?

Back

Estimating in multiplication means finding a close value to the actual product by rounding the numbers before multiplying.

Front

Estimate the product of 62 X 3.

Back

180

Front

What is the best way to estimate 62 x 23?

Back

Use 60 x 20 for estimation.

Front

Estimate the product of 99 X 7.

Back

700

Front

How do you round numbers for estimation?

Back

To round numbers, look at the digit to the right of the place you are rounding to. If it's 5 or more, round up; if it's less than 5, round down.

Front

ROUND to estimate: 25 x 81

Back

2,400

Front

ROUND to estimate: 39 x 37

Back

1,600

Front

What is the purpose of rounding in estimation?

Back

Rounding simplifies calculations and helps to quickly find an approximate answer.

Front

What is a product in multiplication?

Back

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

Front

What is the estimated product of 60 x 30?

Back

1,800