Rounding & Estimation PRACTICE

Front

What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler and easier to work with, usually to the nearest ten, hundred, or other place value.

Front

What does it mean to estimate?

Back

Estimating means making a close guess about a number or amount, often using rounding to simplify calculations.

Front

Estimate the sum of 15 and 18.

Back

30

Front

Estimate the total of 20, 57, and 62.

Back

140

Front

What is the best estimate of 329 pounds on a number line?

Back

Between 300 and 400, but closer to 300.

Front

How do you round 42 to the nearest ten?

Back

42 rounds to 40.

Front

How do you round 31 to the nearest ten?

Back

31 rounds to 30.

Front

What is the best estimate of 422, 278, and 865?

Back

1,600.

Front

Estimate how many miles Coach Johnson ran in total: 15, 18, and 20.

Back

60.

Front

What is the nearest ten to 62?

Back

60.