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How to round a number with two decimal places to the nearest whole number.

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Presentation on theme: "How to round a number with two decimal places to the nearest whole number."— Presentation transcript:

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2 How to round a number with two decimal places to the nearest whole number

3 First look at the value of the digit in the tenths column 4.76Has 7 tenths 5.58Has 5 tenths 3.27 Has 2 tenths 4.32Has 3 tenths

4 You round down to the nearest whole number if the tenths digit is 0,1,2,3 or 4. 3.27 is rounded down to 3 4.32 is rounded down to 4 17.15 is rounded down to 17 120.06 is rounded down to 120 45.44 is rounded down to 45

5 You round up to the nearest whole number if the tenths digit is 5,6,7,8 or 9. 4.76 is rounded up to 5 5.58 is rounded up to 6 17.87 is rounded up to 18 125.92 is rounded up to 126 46.63 is rounded up to 47

6 Watch out for numbers which have 9 in the units column. e.g. 9.57 If you are rounding up, you will make 10 units. This makes 1 ten, so you have to round to the next ten (in this case to 10). For the same reason, 29.87 becomes 30 19.75 becomes 20 And 459.68 becomes 460

7 That’s it for now......


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