Rounding Whole Numbers

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 specified place value.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What does it mean to round to the nearest hundred?

Back

Rounding to the nearest hundred means finding the closest multiple of 100 to a given number.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

When rounding a number, what digit do you look at to decide whether to round up or down?

Back

You look at the digit to the right of the place value you are rounding to. If it's 5 or more, you round up; if it's less than 5, you round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Round 409 to the nearest hundred.

Back

400

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Round 445 to the nearest hundred.

Back

400

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Round 398 to the nearest hundred.

Back

400

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Round 345 to the nearest hundred.

Back

300

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the rule for rounding to the nearest thousand?

Back

When rounding to the nearest thousand, look at the hundreds place. If it's 5 or more, round up; if it's less than 5, round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Round 55,555 to the nearest thousand.

Back

56,000

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Round 123,456 to the nearest hundred thousand.

Back

100,000

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3