Estimating & Rounding

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 by rounding.

Front

What is 56 rounded to the nearest ten?

Back

60

Front

What is 39 rounded to the nearest ten?

Back

40

Front

What is eighteen rounded to the nearest ten?

Back

20

Front

How do you round a number?

Back

Look at the digit to the right of the place value you are rounding to. If it's 5 or more, round up. If it's 4 or less, round down.

Front

What is 38 + 17 estimated?

Back

About 60

Front

What is 77 + 12 estimated?

Back

About 90

Front

What is the nearest ten to 25?

Back

30

Front

What is the nearest ten to 73?

Back

70