Rounding to the nearest ten and hundred

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 more, round up; if it's less than 5, round down.

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 one hundred. If the last two digits are 50 or more, round up; if they are less than 50, round down.

Front

How do you round the number 149 to the nearest hundred?

Back

To round 149 to the nearest hundred, look at the last two digits (49). Since 49 is less than 50, round down to 100.

Front

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

Back

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

Front

How do you round the number 752 to the nearest ten?

Back

To round 752 to the nearest ten, look at the last digit (2). Since 2 is less than 5, round down to 750.

Front

How do you round the number 168 to the nearest hundred?

Back

To round 168 to the nearest hundred, look at the last two digits (68). Since 68 is 50 or more, round up to 200.

Front

How do you round the number 18 to the nearest ten?

Back

To round 18 to the nearest ten, look at the last digit (8). Since 8 is 5 or more, round up to 20.

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 more, round up; if it is less than 5, round down.

Front

What is a multiple of ten?

Back

A multiple of ten is any number that can be expressed as ten times an integer, such as 10, 20, 30, etc.