Rounding

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler or to make it easier to work with, typically by increasing or decreasing the number 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 adjusting a number to the closest multiple of 100. If the last two digits are 50 or more, round up; if they are less than 50, round down.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round the number 152 to the nearest hundred?

Back

To round 152 to the nearest hundred, look at the last two digits (52). Since 52 is greater than 50, round up to 200.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round the number 481 to the nearest hundred?

Back

To round 481 to the nearest hundred, look at the last two digits (81). Since 81 is greater than 50, round up to 500.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round the number 967 to the nearest hundred?

Back

To round 967 to the nearest hundred, look at the last two digits (67). Since 67 is greater than 50, round up to 1,000.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What does it mean to round to the nearest ten?

Back

Rounding to the nearest ten means adjusting a number to the closest multiple of 10. If the last digit is 5 or more, round up; if it is less than 5, round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round the number 76 to the nearest ten?

Back

To round 76 to the nearest ten, look at the last digit (6). Since 6 is greater than 5, round up to 80.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round the number 921 to the nearest ten?

Back

To round 921 to the nearest ten, look at the last digit (1). Since 1 is less than 5, round down to 920.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the rule for rounding numbers?

Back

The general rule for rounding is: if the digit to the right of the rounding place is 5 or greater, round up; if it is less than 5, round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Why is rounding important in mathematics?

Back

Rounding is important because it simplifies numbers, making calculations easier and helping to estimate values quickly.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3