NEW
Font size
S
M
L
XL
WorksheetsUnit 3 Summary
Total questions: 20
Worksheet time: 2hrs 40mins
Name
Class
Date
1.
Identify the numbers that are in correct scientific notation form:
a)
34 x 10
b)
0.572 x 101
c)
6.2 x 102
d)
0.431 x 103
2.
What is the order of magnitude for the number 9.38 x 105?
a)
9.38
b)
10
c)
5
d)
9
3.
Convert the following to standard notation: 7.03 × 10ˉ5
a)
0.703
b)
0.0703
c)
0.00703
d)
0.0000703
4.
Convert the following to standard notation: 6.85 × 102
a)
685
b)
6850
c)
68.5
d)
0.685
5.
Convert the following to proper scientific notation: 0.0184
a)
1.84 x 102
b)
1.84 x 10-2
c)
1.84 x 103
d)
1.84 x 10-3
6.
Convert the following to proper scientific notation: 3490
a)
3.49 x 10-3
b)
3.49 x 10-2
c)
3.49 x 103
d)
3.49 x 102
7.
Convert the following to proper scientific notation: 6245.89 x 105
a)
6.24589 x 106
b)
6.24589 x 107
c)
6.24589 x 108
d)
6.24589 x 109
8.
Which of the following is larger?
a)
7.9 x 1012
b)
9.3 x 109
9.
Which of the following is larger?
a)
4.8 x 10-7
b)
5.1 x 10-2
10.
California has approximately 6 x 104 people living in it. The population of the entire United States is approximately 8 x 107 people. About how many times greater is the population of the United States than the population of California?
a)
1.34 x 1015 times
b)
1.34 x 101 times
c)
1333 times
d)
13333 times
11.
A dwarf monkey stands 3 x 10-1 feet tall. A typical giraffe is 1.5 x 102 feet tall. How many times taller is the giraffe than the dwarf monkey?
a)
5 x 100
b)
5 x101
c)
50 times
d)
500 times
12.
Angela bought 2 x 102 pounds of candy. Henry paid for 3 x 10-2 pounds of candy. Angela’s amount of candy is how many times greater than Henry’s?
a)
600 times
b)
1600 times
c)
662 times
d)
6667 times
13.
(8.9 x 1010) + (2.1 x 1013)
a)
2.1089 x 1010
b)
2.1089 x 1011
c)
2.1089 x 1012
d)
2.1089 x 1013
14.
(9 × 105) – (7 × 104)
a)
8.3 x 10-5
b)
8.3 x 105
c)
8.3 x 10-4
d)
8.3 x 104
15.
A computer’s hard disk drive holds 7.2 x 104 bytes of information. If Jill buys an extra memory stick that holds 5.5 x 103 bytes of information, how much memory will the computer hold altogether?
a)
7.75 x 103
b)
775 x 103
c)
77.5 x 104
d)
7.75 x 104
16.
The Diplodocus dinosaur is believed to have become extinct approximately 3.14 x 109 years ago. The Oviraptor is believed to have become extinct approximately 9 x 106 years ago. How many years were there between the extinction of these two dinosaur types?
a)
3.131 x 107 years
b)
7.8 x 107 years
c)
3.131 x 109 years
d)
7.8 x 109 years
17.
(6.4 x 106)(3 x 106)
a)
1.83 x 1012
b)
1.83 x 1013
c)
1.83 x 1014
d)
1.83 x 1015
18.
8 x 105 ÷ 2 x 102
a)
4 x 107
b)
2.5 x 103
c)
4 x 103
d)
2.5 x 107
19.
A rectangular section of wilderness will be set aside as a new wildlife refuge. Its dimensions are 4 x 107 meters by 2 x 105 meters. Find the area of the land in square meters.
a)
6 x 102 square meters
b)
6 x 1012 square meters
c)
8 x 102 square meters
d)
8 x 1012 square meters
20.
The government will give each state the same amount of social security numbers. There are 8.5 × 105 available numbers to give in total. How many will be allocated to each state?
a)
1.7 × 105
b)
17000
c)
170,000
d)
1.7 million
Reset
