Rounding to nearest 10, 100, or 1000

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest specified place value (like tens, hundreds, or thousands) to make it simpler or easier to work with.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

When rounding to the nearest ten, what do you look at?

Back

You look at the digit in the ones place. If it's 5 or more, you round up. If it's 4 or less, you round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Round the number 45 to the nearest tens place.

Back

50

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CCSS.4.NBT.A.3

Front

Round the number 87 to the nearest tens.

Back

90

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CCSS.4.NBT.A.3

Front

What is the nearest hundred to 302?

Back

300

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Which number does NOT round to 400 when rounding to the nearest hundred? 409, 445, 345, 398

Back

345

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Round 3,450 to the nearest hundred.

Back

3,500

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the rule for rounding to the nearest hundred?

Back

Look at the tens place. If it's 5 or more, round up to the next hundred. If it's 4 or less, round down.

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.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Round 234 to the nearest hundred.

Back

200

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3