Rounding Numbers

Front

What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler and easier to work with, while keeping its value close to what it was.

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CCSS.4.NBT.A.3

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Front

What does it mean to round to the nearest ten?

Back

Rounding to the nearest ten means finding the closest multiple of ten to a given number.

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Front

How do you round a number that is exactly halfway between two multiples of ten?

Back

If a number is exactly halfway between two multiples of ten, round up to the higher multiple.

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Front

Round 649 to the nearest ten.

Back

650

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Front

Round 874 to the nearest ten.

Back

870

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Front

Round 555 to the nearest ten.

Back

560

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Front

What does it mean to round to the nearest hundred?

Back

Rounding to the nearest hundred means finding the closest multiple of one hundred to a given number.

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Front

Round 231 to the nearest hundred.

Back

230

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Front

Round 222 to the nearest hundred.

Back

200

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Front

What is the rule for rounding numbers less than 5?

Back

If the digit in the place value you are rounding to is less than 5, round down.

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