1. How many sig figs are in each of the
following numbers?
0.025
22.4
0.0404
5.50 x 103

2. How many sig figs are in each of the
following numbers?
0.025
22.4
0.0404
5.50 x 103 2 3 3 3

3. Round each of the following numbers to
three sig figs:
93.246
4.644
34.250

4. Round each of the following numbers to three sig figs:
93.246
4.644
34.250
93.2
0.0286
4.64
34.3

5. Solve the following problems, stating
answers to the proper number of sig figs: =
(2.25 x 103)(4.80 x 104)=
(452)(6.2) =
14.3
(0.0394)(12.8) = =
59.6
(1.5 x 104) =

6. Solve the following problems, stating
answers to the proper number of sig figs: =
(2.25 x 103)(4.80 x 104)=
(452)(6.2) =
14.3
(0.0394)(12.8) = =
59.6
(1.5 x 104) =
= 14.4
1.08 x ,000,000
= 200 = 2.0 x 102 =
= 7.18 x10-3
5.6 x = 56,000