WorksheetsRounding Significant Figures Homework
Total questions: 35
Worksheet time: 18mins
Name
Class
Date
1.
What is the first significant figure in 0.0457?
a)
4
b)
5
c)
0
d)
7
2.
What is the first significant figure in 23.45?
a)
5
b)
4
c)
3
d)
2
3.
What is 78.5 rounded to one significant figure?
a)
79
b)
78.5
c)
70
d)
80
4.
What is 0.658 rounded to 1 significant figure?
a)
0
b)
0.66
c)
0.7
d)
0.658
5.
What is 0.0568 rounded to 1 significant figure?
a)
0
b)
0.06
c)
0.6
d)
0.57
6.
What is 0.000328 rounded to 1 significant figure?
a)
0
b)
0.0003
c)
0.00033
d)
0.000328
7.
What is 98.907 rounded to 1 significant figure?
a)
98.9
b)
90
c)
100
d)
98.91
8.
What is the 2nd significant figure of 0.40520?
a)
4
b)
5
c)
0
d)
2
9.
What is 7000 rounded to 1 significant figure?
a)
0.7
b)
10000
c)
0
d)
7000
10.
Round to the nearest hundred:
888
888
a)
900
b)
800
c)
880
d)
890
11.
What is 78.5 rounded to one significant figure?
a)
79
b)
78.5
c)
70
d)
80
12.
round to 2 decimal places 22.484
a)
22.49
b)
22.48
c)
22.40
d)
22.00
13.
Round off 509.96 to 4 significant figures.
a)
509.9
b)
509.0
c)
510.0
d)
510
14.
67 seconds + 10.1 seconds = ?
a)
77.1
b)
77
c)
70
d)
80
15.
0.0005 meters + 0.029 meters = ?
a)
0.0295 meters
b)
0.300 meters
c)
0.030 meters
d)
0.029 meters
16.
9544 lbs - 321 lbs = ?
a)
9000 lbs
b)
10,000 lbs
c)
9223 lbs
d)
9862 lbs
17.
1.0 kg - 0.001 kg = ?
a)
0.999 kg
b)
0.99 kg
c)
0.9 kg
d)
1.0 kg
18.
33 g - 2.1 g = ?
a)
31.9 g
b)
31 g
c)
30.9 g
d)
30 g
19.
0.495 g - 0.101 g = ?
a)
0.394 g
b)
0.3 g
c)
0.4 g
d)
0.494 g
20.
100 + 30.6
a)
130.6
b)
131
c)
130
d)
100
21.
5.9 x 6.01
a)
35.459
b)
35.46
c)
35.5
d)
35
22.
7.8 x 5.501
a)
42.9078
b)
42.908
c)
42.91
d)
42.9
e)
42
23.
5.40 x 7.90
a)
42.66
b)
42.7
c)
43
d)
40
24.
0.9/2.3
a)
0.391
b)
0.39
c)
0.40
d)
0.4
25.
7.15/0.10
a)
71.5
b)
72
c)
70
d)
71.50
26.
3.32 x 0.34
a)
1.1288
b)
1.129
c)
1.13
d)
1.1
27.
1.2279 + 2.444 + 3.33
a)
7.0019
b)
7.002
c)
7.00
d)
7.0
28.
2.40 - 0.004
a)
2.396
b)
2.39
c)
2.40
d)
2.4
29.
340.123 - 63.02
a)
277.103
b)
277.10
c)
277.1
d)
277
30.
Calculate 1.23 m x 0.89 m and give your answer with the correct number of significant figures.
a)
1.0 m2
b)
1.1 m2
c)
1.0947 m2
d)
1.095 m2
31.
Calculate 923 g ÷ 20312 cm3 and give your answer with the correct number of significant figures.
a)
0.04 g/cm3
b)
0.045 g/cm3
c)
0.0454 g/cm3
d)
0.05 g/cm3
32.
Calculate 12.47 m ÷ 3.2 s and give your answer with the correct number of significant figures.
a)
4 m/s
b)
3.9 m/s
c)
3.90 m/s
d)
3.897 m/s
33.
Calculate 0.020 cm x 50 cm x 11.1 cm and give your answer with the correct number of significant figures.
a)
10 cm3
b)
11.1 cm3
c)
11 cm3
d)
11. cm3
34.
Round 0.010229 to four sig figs
a)
1022
b)
1023
c)
0.01023
d)
0.01022
35.
Multiply 5.4L x 8.99g/L
a)
49g
b)
48.5g
c)
48.55g
d)
48.546g
100 %
