Rounding Numbers to Estimate the Sum Flashcard

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 is the nearest ten to 52?

Back

50

Front

What is the nearest ten to 39?

Back

40

Front

What is the estimated sum of 50 and 40?

Back

90

Front

What is the sum of 3 and 5?

Back

8

Front

What is the sum of 2 and 9?

Back

11

Front

What is the sum of 7 and 1?

Back

8

Front

What is the estimated sum of 302 and 456 when rounded to the nearest 100?

Back

800

Front

What is the nearest hundred to 302?

Back

300

Front

What is the nearest hundred to 456?

Back

500