Transcript Slide 1

Mr. Sweeten’s NEW and
Improved “Sig Fig” Math Rules
• For multiplication and division:
1) Count the total sig figs in each of the original
numbers – What was the least number of total sig
figs found in either number?
2) Report or round your answer to have that same
lowest number of sig figs!
• For addition and subtraction:
1) Scan each of the original numbers from left to right
- What was the last PLACE in either number where
you found a sig fig?
2) Report or round your answer to have its last sig fig
in that same PLACE!
Sig. Fig. Math WS
1.
23.5 + 2.03
23.5
+
2.03
5.
45.98 - 3.90
6.
= 44.0
25.53
25.5
2.
3.
45.98
3.90
7.
= 9.80514
9.805
4.
9 - .600
-
9
.600
8
8.4
.00060 x 9.030
= .0054
.005418
42.08
3.4200 x 2.867
12 / 3.0000
8.
2.09 + 8.0000
2.09
+
8.0000
10.09
24.00 / 3.0
= 8.0
9.
7.002 - .2
7.002
.2
6.8
6.802
10.
24.3 x 42.50
= 1032.75
1030
1.03 x 103
11.
330 x 2616
= 863280
860000
8.6 x 105
12.
101 / .0101
= 10000
1.00 x 104