Name:
Significant Figures
I.
Put the following numbers in scientific notation.
1)
2)
3)
4)
5)
6)
II.
0.00034
0.000006
1,340,000
1,250,000
4,500
560,000,000
7)
8)
9)
10)
11)
12)
_
0.00603
0.135
65,510
0.012
0.0000630
653.2
Indicate the number of significant figures in each measurement.
1) 0.009 kg
2) 0.090 hg
3) 0.900 9
4) 9.00 km
5) 9.09 m
6) 1,214 ml7) 16.03 9
8) 0.00030 kL.__
9) 120 m
10)1001 m
III.
~ __
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
10. cL
32.0 s
0.40 dks
16,000 mL __
20,002 mg __
14.4dm
1.010 cm
0.4040 cm __
20.000 s
0.005 hL
Perform the addition or subtraction as indicated. Put answer in correct number of
significant figures.
1) 12.1+16=
11) .. 16.3 + 14222 =
2) 13.2 + 81.0 =
12) 0.45 + 5.110 =
3) 22.40 + 1.03 =
13) 1.88+12.11=
4) 86.5 +12.11 =
14) 0.945 + 0.7 =
5) 0.002 + 10.1
=
6) 46.3 - 1.11=
7) 240 - 0.45
9) 0.945 - 0.6
16) 250 -18.3
=
8) 9.53 - 0.222
=
=
18) 0.222 - 0.001
19) 15.6 - 0.13
=
=
=
17) 8.44- 0.222
=
10)0.043 - 0.02
15) 22.50 + 1.05
20) 58-4
=
=
=
IV.
Perform the multiplication
of significant figures.
or division as indicated. Put answer i'Flcorrect number
.
11)
1) 2.0 x 3.0 =
~
1.0 x 4.0 =
,
2) 3.0 x 6.0 ==
12)
9.0 x 2.0 ==
3) 7x2=
13)
18.0 x 2 =
4) 12.0 x 4.0 ==
14) 8.0 x 3.0 =
5) 2.0 x 5.0 =
15)
5x3=
6) 6.0 + 3.0 =
16)
100. + 5.0
7) 18 + 9.0 =
17) 24 +6 =
8) 64 + 16 =
18) 63 + 3.0 =
9) 25 +5 =
19)
30. + 5.0=
10)100. + 10.0 =
20)
18+2.0=
=
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