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The following rule applies for multiplication and division:<br />

The LEAST number of significant figures in any number of the problem determines the number of<br />

significant figures in the answer.<br />

This means you MUST know how to recognize significant figures in order to use this rule.<br />

Solve the Problems and Round Accordingly...<br />

1) 0.6 x 65.0 x 602 = __________<br />

20,000<br />

2) 720 ÷ 7.7 = __________<br />

94 93.50649351<br />

23,478 round it so its one sign number<br />

3) 929 x 0.3 = __________<br />

300<br />

278.7<br />

4) 300 ÷ 44.31 = __________<br />

7<br />

5) 608 ÷ 9.8 = __________ 62<br />

6) 0.06 x 0.079 = __________<br />

0.005<br />

7) 0.008 x 72.91 x 7000 = __________ 4,000<br />

8) 73.94 x 67 x 780 = __________<br />

3,900,000<br />

9) 0.62 x 0.097 x 40 = __________<br />

2<br />

10) 600 x 10 x 5030 = __________<br />

30,000,000<br />

11) 5200 ÷ 4.46 = __________ 1,200<br />

12) 0.0052 x 0.4 x 107 = __________<br />

.2<br />

13) 0.099 x 8.8 = __________<br />

.87<br />

14) 0.0095 x 5.2 = __________<br />

.049<br />

15) 8000 ÷ 4.62 = __________ 2,000<br />

16) 0.6 x 0.8 = __________ 0.5<br />

17) 2.84 x 0.66 = __________<br />

1.9<br />

18) 0.5 x 0.09 = __________<br />

0.05<br />

19) 8100 ÷ 34.84 = __________<br />

230<br />

20) 8.24 x 6.9 x 8100 = __________<br />

460,000<br />

25

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