Rounding Numbers

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.

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 ten. If the last digit is 5 or greater, you round up; if it is less than 5, you round down.

Front

How do you round the number 932 to the nearest ten?

Back

To round 932 to the nearest ten, look at the last digit (2). Since 2 is less than 5, you round down to 930.

Front

How do you round the number 267 to the nearest ten?

Back

To round 267 to the nearest ten, look at the last digit (7). Since 7 is 5 or greater, you round up to 270.

Front

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

Back

When rounding 68 to the nearest ten, the last digit is 8. Since 8 is 5 or greater, you round up to 70.

Front

What is the result of rounding 37 to the nearest ten?

Back

When rounding 37 to the nearest ten, the last digit is 7. Since 7 is 5 or greater, you round up to 40.

Front

What is the result of rounding 124 to the nearest ten?

Back

When rounding 124 to the nearest ten, the last digit is 4. Since 4 is less than 5, you round down to 120.

Front

What is the rule for rounding numbers?

Back

The rule for rounding numbers 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.

Front

Why is rounding important in mathematics?

Back

Rounding is important because it simplifies numbers, making calculations easier and helping to communicate estimates more effectively.

Front

Can you give an example of rounding a number greater than 100 to the nearest ten?

Back

Sure! For example, rounding 145 to the nearest ten: the last digit is 5, so you round up to 150.