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Rounding off decimals to the nearest whole number

Rules for rounding off decimals to the nearest whole number

When the rounding off decimals to the nearest whole number, look at the digit in the tenths place.

- If this digit is 5 or greater than 5, replace the digits after the decimal point by zero and add 1 to the digit in the units place
- If this digit is less than 5, replace the digits after the decimal point by zero.

Note: ‘≈’ means ‘is approximately equal to’

Example: round off the following decimal numbers to the nearest whole numbers.

6.7 ≈ 7 to the nearest whole number

6.3 ≈ 6 to the nearest whole number

17 ≈20 to the nearest ten

EXERCISE1.

Write to the nearest whole number

- 7
- 1
- 9
- 6
- 9
- 2

Exercise 2

Write to the nearest ten

- 7
- 7
- 9
- 6
- 8
- 9
- 5
- 4

See also

HIGHEST COMMON FACTOR (HCF)

LEAST COMMON MULTIPLES (LCM)

SQUARES AND SQUARE ROOTS OF NUMBERS

MULTIPLICATION OF NUMBERS

Area

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