Rounding 10s and 100s

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler and easier to work with, typically by increasing or decreasing it to the nearest specified place value.

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Front

What does it mean to round to the nearest ten?

Back

Rounding to the nearest ten means adjusting a number to the closest multiple of ten. If the last digit is 5 or more, round up; if it's less than 5, round down.

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Front

How do you round a number ending in 5 to the nearest ten?

Back

If a number ends in 5, you round up to the next ten.

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Front

What is the rule for rounding to the nearest hundred?

Back

To round to the nearest hundred, look at the tens digit. If it is 5 or more, round up; if it is less than 5, round down.

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CCSS.3.NBT.A.1

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Front

What is 582 rounded to the nearest ten?

Back

580

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What is 478 rounded to the nearest ten?

Back

480

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Front

What is 95 rounded to the nearest ten?

Back

100

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What is 777 rounded to the nearest hundred?

Back

800

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Front

What is 421 rounded to the nearest ten?

Back

420

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Front

Why is rounding important in everyday life?

Back

Rounding simplifies numbers, making them easier to understand and work with in calculations, budgeting, and estimations.

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