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WorksheetsSignificant Figures and Rounding
Total questions: 20
Worksheet time: 5hrs 0mins
Name
Class
Date
1.
How many significant figures does the following number have?
0.00345
0.00345
a)
6
b)
5
c)
3
d)
Ambiguous: 3,4,5, or 6
2.
How many significant figures does the following number have?1.2500 x 103
a)
5
b)
3
c)
Ambiguous: 3 or 5
d)
7
3.
How many significant figures does the following number have: 100.00210
a)
7
b)
8
c)
10
d)
Ambiguous: 7 or 8
4.
Round 1289 to three significant figures
a)
1290
b)
130
c)
1300
d)
1.29x103
5.
What is 98.907 rounded to 1 significant figure?
a)
98.9
b)
90
c)
100
d)
1x102
6.
Round off 1.03028 to 4 significant figures.
a)
1.030
b)
1.0302
c)
1.03000
d)
1.03020
7.
Round off 96.011 to 3 significant figures.
a)
90
b)
96
c)
96.0
d)
96.000
8.
Round 1047.78 to three sig figs
a)
104
b)
105
c)
1050
d)
1050.00
9.
Round 0.010229 to four sig figs
a)
1022
b)
1023
c)
0.01023
d)
0.01022
10.
Round 1009 to three sig figs
a)
100
b)
101
c)
1010
d)
1000
11.
What is 78.5 rounded to one significant figure?
a)
79
b)
8
c)
78
d)
80
12.
Round 1289 to three significant figures
a)
1290
b)
130
c)
1300
d)
129
13.
Round 1289 to three significant figures
a)
1290
b)
130
c)
1300
d)
129
14.
How many significant figures are there in 0.0054 grams?
a)
2
b)
3
c)
4
d)
5
15.
How many significant figures: 0.001 g
a)
4
b)
3
c)
2
d)
1
16.
What is 78.5 rounded to one significant figure?
a)
8
b)
70
c)
79
d)
80
17.
Round 0.010229 to four significant figures
a)
1022
b)
1023
c)
0.01023
d)
0.01022
18.
Round 1047.78 to three significant figures.
a)
104
b)
105
c)
1050
d)
1050.00
19.
Round 345 000 to 1 s.f
a)
400 000
b)
3
c)
300 000
d)
350 000
20.
Round 2095 to 2 s.f
a)
21
b)
2000
c)
2100
d)
3000
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