Rounding Decimals

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler while keeping its value close to what it was. It often involves increasing or decreasing the last digit based on the value of the digits that follow it.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What does it mean to round to the nearest tenth?

Back

Rounding to the nearest tenth means looking at the digit in the hundredths place. If that digit is 5 or greater, you round up the tenths place by one. If it is less than 5, you leave the tenths place as is.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round a number to the nearest whole number?

Back

To round to the nearest whole number, look at the digit in the tenths place. If it is 5 or greater, round up. If it is less than 5, round down.

Tags

CCSS.5.NBT.A.4

Front

What is the process for rounding to the nearest hundredth?

Back

To round to the nearest hundredth, examine the digit in the thousandths place. If it is 5 or greater, round up the hundredths place by one. If it is less than 5, keep the hundredths place the same.

Tags

CCSS.5.NBT.A.4

Front

What is the significance of the digit after the place value you are rounding to?

Back

The digit after the place value you are rounding to determines whether you round up or down. A digit of 5 or greater indicates rounding up, while a digit less than 5 indicates rounding down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How would you round the number 35.087 to the nearest tenth?

Back

To round 35.087 to the nearest tenth, look at the hundredths place (8). Since 8 is greater than 5, round the tenths place (0) up to 1, resulting in 35.1.

Tags

CCSS.5.NBT.A.4

Front

What is the result of rounding 15.472 to the nearest one?

Back

When rounding 15.472 to the nearest one, look at the tenths place (4). Since 4 is less than 5, round down, resulting in 15.

Tags

CCSS.5.NBT.A.4

Front

How do you round 29.711 to the nearest whole number?

Back

To round 29.711 to the nearest whole number, look at the tenths place (7). Since 7 is greater than 5, round up, resulting in 30.

Tags

CCSS.5.NBT.A.4

Front

What is the rounded value of 72.178 to the nearest hundredth?

Back

When rounding 72.178 to the nearest hundredth, look at the thousandths place (8). Since 8 is greater than 5, round the hundredths place (7) up to 8, resulting in 72.18.

Tags

CCSS.5.NBT.A.4

Front

How do you round 25.634 to the nearest hundredths place?

Back

To round 25.634 to the nearest hundredths place, look at the thousandths place (4). Since 4 is less than 5, keep the hundredths place (3) the same, resulting in 25.63.

Tags

CCSS.5.NBT.A.4