Rounding on a Number Line

Front

What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler and easier to work with, usually to the nearest ten, hundred, or other place value.

Front

What does it mean to round to the nearest ten?

Back

Rounding to the nearest ten means finding the closest multiple of ten to a given number.

Front

What is the nearest ten to 44?

Back

40

Front

What is the nearest ten to 76?

Back

80

Front

What are benchmark numbers?

Back

Benchmark numbers are easy-to-remember numbers that help us estimate and round numbers, like 10, 20, 30, etc.

Front

If a number is 45, which ten does it round to?

Back

50

Front

What is the rule for rounding up?

Back

If the digit in the ones place is 5 or more, round up to the next ten.

Front

What is the rule for rounding down?

Back

If the digit in the ones place is 4 or less, round down to the previous ten.

Front

What two benchmark numbers is 44 between?

Back

40 and 50

Front

What two benchmark numbers is 76 between?

Back

70 and 80