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 reducing the number of digits while keeping the value close to the original number.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round a number to the nearest ten?

Back

To round a number to the nearest ten, look at the digit in the ones place. If it is 5 or greater, round up by adding 1 to the ten's place. If it is less than 5, round down by keeping the ten's place the same.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the rule for rounding to the nearest hundred?

Back

When rounding to the nearest hundred, look at the digit in the tens place. If it is 5 or greater, round up to the next hundred. If it is less than 5, round down to the previous hundred.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round a decimal number to the nearest thousandth?

Back

To round a decimal to the nearest thousandth, look at the digit in the ten-thousandths place. If it is 5 or greater, round up the thousandths place by 1. If it is less than 5, keep the thousandths place the same.

Tags

CCSS.5.NBT.A.4

Front

What is the nearest billion for the number 7,890,430,876?

Back

The nearest billion for the number 7,890,430,876 is 8,000,000,000.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you determine the nearest million for a given number?

Back

To determine the nearest million, look at the digit in the hundred-thousands place. If it is 5 or greater, round up to the next million. If it is less than 5, round down to the previous million.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the result of rounding 345,987 to the nearest hundred thousand?

Back

The result of rounding 345,987 to the nearest hundred thousand is 300,000.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the significance of the digit in the place value when rounding?

Back

The significance of the digit in the place value when rounding is that it determines whether to round up or down based on its value (5 or greater rounds up, less than 5 rounds down).

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round 64,903 to the nearest thousand?

Back

To round 64,903 to the nearest thousand, look at the digit in the hundreds place (9). Since it is 5 or greater, round up to 65,000.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the rounded value of 7.1587 to the nearest thousandth?

Back

The rounded value of 7.1587 to the nearest thousandth is 7.159.

Tags

CCSS.5.NBT.A.4