Rounding Numbers

Front

What is rounding?

Back

Rounding is the process of finding a number that is closer to a given number, usually to make it easier to work with.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What do we do when a number is 5 or more?

Back

We round up to the next higher number.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What do we do when a number is 4 or less?

Back

We round down to the lower number.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is 486 rounded to the nearest 10?

Back

490

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is 32 rounded to the nearest 10?

Back

30

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

When rounding, what does the digit in the ones place tell us?

Back

It tells us whether to round up or down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

If the ones digit is 0, 1, 2, 3, or 4, what do we do?

Back

We round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

If the ones digit is 5, 6, 7, 8, or 9, what do we do?

Back

We round up.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the nearest ten to 75?

Back

80

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the nearest ten to 24?

Back

20

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3