Rounding Decimal Numbers

Front

What is rounding?

Back

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

Front

What does it mean to round to the nearest whole number?

Back

Rounding to the nearest whole number means adjusting a decimal number to the closest whole number. If the decimal is 0.5 or higher, round up; if it's less than 0.5, round down.

Front

What is the place value of the digit in the tenths position?

Back

The tenths position is the first digit to the right of the decimal point.

Front

What is the place value of the digit in the hundredths position?

Back

The hundredths position is the second digit to the right of the decimal point.

Front

What is the place value of the digit in the thousandths position?

Back

The thousandths position is the third digit to the right of the decimal point.

Front

Round 4.67 to the nearest whole number.

Back

5

Front

Round 3.141 to the nearest hundredth.

Back

3.14

Front

Round 7.85 to the nearest tenths.

Back

7.9

Front

What is the rule for rounding up?

Back

If the digit to the right of the rounding place is 5 or greater, round up.

Front

What is the rule for rounding down?

Back

If the digit to the right of the rounding place is less than 5, round down.