Rounding Numbers to the Nearest Ten

What is the purpose of rounding numbers to the nearest ten?

• To make numbers more complex

• To simplify calculations

• To increase the value of numbers

• To make numbers harder to understand

If you have 15 items, to which number would you round them to the nearest ten?

• 10

• 15

• 20

• 25

Which number rounds to 30 when using the nearest ten rule?

• 22

• 19

• 25

• 28