Rounding Decimals

Front

What does it mean to round a number?

Back

Rounding a number means adjusting its value to make it simpler and easier to work with, while keeping it close to the original value.

Front

What is the rule for rounding to the nearest tenth?

Back

To round to the nearest tenth, look at the hundredths place. If it is 5 or greater, round up; if it is less than 5, round down.

Front

How do you round 23.542 to the nearest tenth?

Back

Look at the hundredths place (4). Since it is less than 5, round down to 23.5.

Front

What is the nearest tenth of 47.941?

Back

47.9, because the hundredths place (4) is less than 5.

Front

How do you round 3.436 to the nearest hundredth?

Back

Look at the thousandths place (6). Since it is 5 or greater, round up to 3.44.

Front

What is the nearest whole number for 1.823?

Back

2, because the decimal part (.823) is greater than .5.

Front

What is the difference between rounding up and rounding down?

Back

Rounding up increases the number to the next whole number or decimal place, while rounding down decreases it to the previous whole number or decimal place.

Front

When rounding, what do you do if the digit in the place you are rounding to is 5?

Back

If the digit is 5, round up if there are non-zero digits to the right; otherwise, round down.

Front

What is the significance of the place value when rounding?

Back

Place value determines which digit to look at when rounding and how to adjust the number.

Front

How do you round a number with a zero in the decimal places?

Back

Follow the same rounding rules; the presence of zero does not change the rounding process.