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.

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Front

How do you round a number to the nearest ten?

Back

Look at the digit in the ones place. If it is 5 or more, round up. If it is 4 or less, round down.

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Front

Round 421 to the nearest hundred.

Back

400

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Front

Round 1,389 to the nearest hundred.

Back

1,400

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Front

Round 254 to the nearest ten.

Back

250

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Front

Round 86 to the nearest ten.

Back

90

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Front

What is the nearest hundred to 324?

Back

300

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Front

What does it mean to round up?

Back

Rounding up means increasing the number to the next higher value when the digit is 5 or more.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What does it mean to round down?

Back

Rounding down means decreasing the number to the next lower value when the digit is 4 or less.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

If a number is exactly halfway between two rounding options, what do you do?

Back

Typically, you round up to the higher number.

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CCSS.3.NBT.A.1

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