Significant Figures

Identify the number of significant figures in each of the following exerceses. Assume that each item represents a measured quantity.

1. 29 625
2. 0.020 06
3. 3.017
4. 10.082
5. 0.000 11
6. 0.000 009
7. 3.000 009
8. 2 690
9. 6.50
10. 900.000
11. 60 013
12. 21.040
13. 7.01 x 10⁶
14. 2.00 x 10³
15. 9.060 x 10⁵

Solve the following problems, expressing the answer to the orpper number of significant figures. Use the following 5 measurements to answer the following problems:
a) 1.72 cm; b) 0.15 cm; c) 627.1 cm; d) 0.007 cm; e) 704.050 cm

1. Find the sum of all the numbers, a through e.
2. Find the sum of a + c + e.
3. Find the difference between c and a.
4. Find the difference between e and b.
5. Find the difference between the sums (a + c) and (b + d).
6. Find the product of a and e.
7. Find the product of c and d.
8. Find the product of (a + b) and (b + e).
9. Divide c by b.
10. Divide e by d.
11. Find the sum of b and c and divide it by the difference between e and c.
12. Find the third power of b.