Estimating

Front

What is estimating in math?

Back

Estimating is finding a number that is close enough to the exact amount, making it easier to do math in your head.

Front

Estimate 27 + 36

Back

70

Front

Estimate 58 + 12

Back

70

Front

Estimate 31 + 42

Back

70

Front

Estimate 34 - 8

Back

20

Front

Estimate 79 + 11

Back

90

Front

What does it mean to round a number?

Back

Rounding a number means changing it to a nearby value that is easier to work with.

Front

Estimate 45 + 25

Back

70

Front

Estimate 90 - 15

Back

80

Front

What is the purpose of estimating?

Back

The purpose of estimating is to make calculations easier and quicker.