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# Rounding Numbers

With all these rounding methods, you need to identify the last digit — e.g. if you're rounding 23.41 to 1 decimal place, the last digit is 4. Then look at the next digit to the right. If it's 5 or more you round up, if it's 4 or less you round down.

## Q1)

Round these numbers to the required number of decimal places:
1. 62.1935 (1 d.p.) 999✓
2. 62.1935 (2 d.p.) _________
3. 62.1935 (3 d.p.) _________
4. 19.624328 (5 d.p.) _________
5. 6.2999 (3 d.p.) _________
6. π (3 d.p.) _________

## Q2)

Round these numbers to the required number of significant figures.
1. 1329.62 (3 s.f.) _________
2. 1329.62 (4 s.f.) _________
3. 1329.62 (5 s.f.) _________
4. 120 (1 s.f.) _________
5. 0.024687 (1 s.f.) _________
6. 0.024687 (4 s.f.) _________
Remember - the first significant figure is the first digit which isn't zero.

## Q3)

K = 456.9873 Write K correct to:
1. one decimal place 999✓
2. two decimal places _________
3. three decimal places _________
4. three significant figures _________
5. two significant figures _________
6. one significant figure. _________