Rounding Decimals

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 whole number or decimal place.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What does it mean to round to the nearest whole number?

Back

Rounding to the nearest whole number means finding the closest whole number to a given decimal.

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CCSS.5.NBT.A.4

Front

How do you round a number that is exactly halfway between two whole numbers?

Back

If a number is exactly halfway, you round up to the next whole number.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Round 1.823 to the nearest whole number.

Back

2

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CCSS.5.NBT.A.4

Front

When rounding to the nearest whole number, which would round to 20? 19.3, 19.09, 19.82, or 20.5?

Back

19.82

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CCSS.5.NBT.A.4

Front

What is the tenths place in a decimal number?

Back

The tenths place is the first digit to the right of the decimal point.

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CCSS.5.NBT.A.3A

Front

Round 45.38 to the tenths place.

Back

45.4

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CCSS.5.NBT.A.4

Front

Round 0.678 to the nearest tenth.

Back

0.7

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CCSS.5.NBT.A.4

Front

Round 23.542 to the nearest tenth.

Back

23.5

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CCSS.5.NBT.A.4

Front

What is the rule for rounding up?

Back

If the digit to the right of the place you are rounding to is 5 or greater, round up.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3