Rounding

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

How do you round a number to the nearest ten?

Back

To round a number to the nearest ten, look at the digit in the ones place. If it is 5 or more, round up. If it is 4 or less, round down.

Front

Round 67 to the nearest ten.

Back

70

Front

Round 254 to the nearest ten.

Back

250

Front

What is the nearest hundred to 324?

Back

300

Front

Round 278 to the nearest hundred.

Back

300

Front

When rounding 625 to the nearest hundred, what are the two benchmark numbers?

Back

600 and 700

Front

What is a benchmark number in rounding?

Back

Benchmark numbers are the nearest multiples of ten or hundred that help determine how to round a number.

Front

If a number is exactly halfway between two benchmark numbers, how do you round it?

Back

If a number is exactly halfway, you round up to the next higher number.

Front

Round 45 to the nearest ten.

Back

50