Rounding nearest 10 100 review

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler and easier to work with, while keeping its value close to what it was.

Front

What does it mean to round to the nearest 10?

Back

Rounding to the nearest 10 means adjusting a number to the closest multiple of 10.

Front

What does it mean to round to the nearest 100?

Back

Rounding to the nearest 100 means adjusting a number to the closest multiple of 100.

Front

How do you determine whether to round up or down when rounding to the nearest 10?

Back

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

Front

How do you determine whether to round up or down when rounding to the nearest 100?

Back

If the last two digits are 50 or greater, round up. If they are less than 50, round down.

Front

Round 645 to the nearest 100.

Back

600

Front

Round 675 to the nearest 100.

Back

700

Front

Round 675 to the nearest 10.

Back

680

Front

Round 673 to the nearest 10.

Back

670

Front

What is the significance of the digit in the tens place when rounding to the nearest 10?

Back

The digit in the tens place helps determine whether to round up or down based on the value of the units place.