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#1 2006-07-17 18:46:42

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

Significant Figures

Basic Significant Figure Excercises

1. Round off the number 37649 to 1 s.f.
2. Round off the number 0.0073184 to 1 s.f.
3. Round off 824691 correct to 2 s.f.
4. Round off 0.0000386241 to 2 s.f.
5. Work out the answer to 974 x 586 on a calculator , and round off the answer to 3 s.f.
6. Work out the sum 23 ÷ 946 on a calculator , and round off your answer correct to 3 s.f.
7. What sum would you do in order to get a rough answer to 4671 ÷ 19.6 (to 1 s.f.)?
Use ' / ' for the divide sign.

8. Work out a rough answer for 4671 ÷ 19.6 using your answer to Q7.
9. What sum would you do to get a rough answer for 73541 x 0.008564 (to 1 s.f.)?
10. Work out a rough answer for 73541 x 0.009465 using your answer to question 9.

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