2.1 Estimation

Front

What is estimation in mathematics?

Back

Estimation is a method used to find an approximate value that is close to the actual value, often used when exact calculations are not necessary.

Front

Estimate: 388 - 311

Back

100

Front

Estimate: 62 x 3

Back

180

Front

What is the best expression to estimate 492 x 2?

Back

500 x 2

Front

Estimate the sum: 5,023 + 6,243

Back

11,000

Front

Estimate the sum: 2,764 + 4,851

Back

8,000

Front

What is rounding in estimation?

Back

Rounding is the process of adjusting a number to the nearest specified value, often to make calculations easier.

Front

Estimate: 1,234 + 567

Back

1,800

Front

Estimate: 45 x 6

Back

270

Front

What is the purpose of estimation?

Back

The purpose of estimation is to make quick calculations and to check the reasonableness of answers.