sig fig practice key

Name
~_e.;....,y
Significant
Period
_
Figures Worksheet
1. How many significant
measurements?
3
5
b. 14.809 em
a. 3.58 9
d. 0.0004898
mm
g. 0.007832
j. 14.380 s
figures are there in each of the following
&i
5
f. 804.58 kg
Ii
e.3000.em
k. 307g :3
n. 4500 km 'J-
.5
p. 0.00300900870
q. 3.50
mm'
X
G>
S
i. 250.00 km IS
h. 130,004.5 mm'
eg '\
m. 0.00058900g
e. 107.334 km
I. 1.40082 em ~
0.180.00 s 5
r. 1.604 x 1O-4g Lf
103 em '3
2. Express the answer to each of the following calculations with the correct
number of significant figures.
a. 8.4 em x 3.58 em = !O. GM'2.
b. 1.075 m x 2.0 m = 2. 2. ~"Io
.If
21f
e. 3.0899 mm x 22.4 mm = ~C}.2. r:.",1.
d. 0.00457 em x 0.18 em = S.2. '0
c.f'"
f. 35.068 km3 .;. 5.7 km = 6.2. kft\S.
e. 10.00 m x 84.767 m = 8"11.1 al"lo
2
h. 0.00826 em2 .;. 0.00033 em = ,.5 c.tv\
g. 85.0869 m .;. 9.0049 tT1
m
2
j. 3.4500 em2.;. 450 em = '1.1 ~ 10"3 C.M
i. 0.005600 mm .;. 0.200 = • 02.80 fA~
k. 3.0 em x 4.000em = ,'2. G~z.
I. 2.005 em x 5.0 em = 10. C~1
•••
8
=,. ""'0
m. 4.00 m x 87,488 m
2
o. 8.70 x 10- mm x 4.0 mm = •
q. 120 km2 .;. 8.56 km = ,.., kW\
s. 4.80
X
105 m2.;. 8.5
n. 2.3 x 10-6 m x 1.45 x 10-2 m
= , )( 10' m"l.
103 m
X
~5".",,"
2
p. 0.0945 mm
= 5{,
0.90 mm
.;.
r. 0.7600 mm3
.;. 1.50
t. 6.30 x 10-2 m3
fV\
.;.
mm
8.04 m
=
1."!= 10
10-3
= 5.0~
J\1\M
= •. 60; ~'M'2.
= 1.8'1)t 10.3 Pt 1.
3. Express the answer to each of the following calculations with the correct
number of significant figures.
b. 16.8892 km + 3.5 km = 20.'" k~
a. 82.5 em + 13.56 em =
t.W\
d. 106.22 mm + 80.0 mm = 186.2. ""'w\
e. 45.456 g+3.56g = ~'1'f.OZ.3
f. 13.80 em - 6.0741 em = "7.'3 GM
e. 30.44 kgi"3.9422
kg = 3"'.39 kS
h. 30. S - 1.442 S = 11 S
g. 8.472 eg - 1.440 eg = 1.03'1. c.j
j.1.45050
kg - O.qOppl kg = I. Cf"l383k,s
i. 54.00 9 - 30.2020 9 = '2.3.90,
'~.I
4. Express the answer to each of the following calculations with the correct
number of significant figures.
)
a. 15.554 em x 0.000312
( 1.5 em + 3.62 em)
b.
'5.1
2
em
~.'l.
K>G
~
: ~
tt
Cfl'\
5
( 2.9 x 103mm x 1.00 x 10 mm)
( 1.22 x 10-2 mm x 5.7778 x 10-3 mm):
"
"'1.6~
2
2
e. (8.00006 m - 2 m
2.4 x 10-1 m
)
'0- 5
lO-i
t
llf. f ~dO
r:;;;
201; ~ ~
.2
rvJ
:;j
~W\
M~

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