Rounding to the Nearest 10

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What is rounding to the nearest 10?

Back

Rounding to the nearest 10 involves adjusting a number to the closest multiple of 10. If the last digit is 5 or greater, round up; if it's less than 5, round down.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

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How do you round the number 72 to the nearest 10?

Back

To round 72 to the nearest 10, look at the last digit (2). Since 2 is less than 5, round down to 70.

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Front

How do you round the number 37 to the nearest 10?

Back

To round 37 to the nearest 10, look at the last digit (7). Since 7 is 5 or greater, round up to 40.

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CCSS.3.NBT.A.1

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Front

What is the result of rounding 68 to the nearest 10?

Back

Rounding 68 to the nearest 10 results in 70, as the last digit (8) is 5 or greater.

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CCSS.3.NBT.A.1

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Front

What is the nearest 10 for the number 14?

Back

The nearest 10 for the number 14 is 10, as the last digit (4) is less than 5.

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CCSS.3.NBT.A.1

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Front

What is the nearest 10 for the number 24?

Back

The nearest 10 for the number 24 is 20, since the last digit (4) is less than 5.

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CCSS.3.NBT.A.1

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What is the rule for rounding numbers?

Back

The rule for rounding numbers is: if the last digit is 5 or greater, round up; if it is less than 5, round down.

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Why is rounding important in mathematics?

Back

Rounding is important in mathematics because it simplifies numbers, making them easier to work with and understand, especially in estimation.

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Front

What is an example of rounding a number greater than 5?

Back

An example is rounding 56 to the nearest 10, which results in 60, as the last digit (6) is greater than 5.

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CCSS.3.NBT.A.1

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Front

What happens when you round a number that is exactly halfway between two multiples of 10?

Back

When rounding a number that is exactly halfway (like 35), the common convention is to round up to the next multiple of 10.

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CCSS.3.NBT.A.1

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