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WorksheetsThe number system/Scientific Notation review
Total questions: 41
Worksheet time: 2hrs 44mins
Name
Class
Date
1.
√81
a)
9
b)
10
c)
8
d)
6
2.
√100
a)
15
b)
10
c)
11
d)
12
3.
√4
a)
3
b)
4
c)
2
d)
1
4.
√121
a)
12
b)
10
c)
11
d)
3
5.
√64
a)
3
b)
8
c)
7
d)
6
6.
√49
a)
5
b)
3
c)
6
d)
7
7.
Find the AREA of this figure.
a)
20 square feet
b)
20 cm
c)
25 square cm
d)
20 cm sq.
8.
Estimate the square root.
a)
3
b)
4
c)
5
d)
6
9.
Estimate the square root.
a)
9
b)
10
c)
11
d)
12
10.
Estimate the square root.
a)
7
b)
8
c)
9
d)
10
11.
Estimate the square root.
a)
1
b)
2
c)
3
d)
4
12.
Which would be the next number in the pattern?
36, 49, 64, 81 __
36, 49, 64, 81 __
a)
82
b)
18
c)
64
d)
100
13.
Which statement is NOT true?
a)
√169 = 13
b)
152 = 225
c)
42 = √16
d)
√164 = 18
14.
In between what two integers is the square root of 44?
a)
3 and 4
b)
4 and 5
c)
5 and 6
d)
6 and 7
15.
In between what two integers is the square root of 77?
a)
5 and 6
b)
6 and 7
c)
7 and 8
d)
8 and 9
16.
Find the best estimate for √18 .
Look at the number line.
Look at the number line.
a)
4.2
b)
4.4
c)
5.1
d)
4
17.
What type of number is π ?
a)
Rational
b)
Irrational
18.
Which number is irrational?
a)
9.6
b)
√45
c)
3/8
d)
3.4 x 10 ⁵
19.
Which number is a rational number ?
a)
1/4
b)
π
c)
√3
d)
∛25
20.
√7
a)
Rational
b)
Irrational
21.
√25
a)
Rational
b)
Irrational
22.
-17.565
a)
Rational
b)
Irrational
23.
.141414141414...
a)
Rational
b)
Irrational
24.
The decimal of an irrational number doesn't repeat with a pattern.
a)
true
b)
false
25.
Fraction bars mean ___________.
a)
multiplication
b)
division
c)
adding
d)
subtracting
26.
Which of the following is rational?
a)
√2
b)
√150
c)
√144
d)
√10
27.
Is √2 rational or irrational?
a)
Rational
b)
Irrational
28.
Write 7.113 x 107 in standard form.
a)
71,130,00
b)
7,113,000
c)
0.0000007113
d)
7,113
29.
Write 0.00000707 in scientific notation.
a)
7.07 x 10-6
b)
7.07 x 106
c)
707 x 108
d)
707 x 10-8
30.
Write 2.08 x 102 in standard form.
a)
208
b)
0.0208
c)
20,800
d)
0.208
31.
Write 7.8 x 10-3 in standard form.
a)
0.0078
b)
7,800
c)
78
d)
0.078
32.
Write 8.73 x 10-4 in standard form.
a)
0.000873
b)
0.0873
c)
87,300
d)
8,730
33.
Write 52,300,000 in scientific notation.
a)
5.23 x 107
b)
5.23 x 10-7
c)
52.3 x 106
d)
52.3 x 10-6
34.
Write 0.037 in scientific notation.
a)
3.7 x 10-2
b)
3.7 x 102
c)
37 x 10-3
d)
37 x 103
35.
Multiply:
(9.4 x 106)(3.2 x 105)
(9.4 x 106)(3.2 x 105)
a)
30.08 x 1011
b)
3.8 x 101
c)
3.008 x 1012
d)
2.9375 x 101
36.
Divide:
(6.9 x 107) / (2.3 x 10-3)
(6.9 x 107) / (2.3 x 10-3)
a)
3 x 1010
b)
3 x 104
c)
3 x 10-4
d)
3 x 10-11
37.
a)
3.9 x 106
b)
4 x 1020
c)
4 x 106
d)
3.9 x 1020
38.
Which is the largest?
4.8 x 10-6
1.3 x 1020
3.1 x 10-4
9.2 x 10-5
9.5 x 1032
5.9 x 10-5
2.9 x 1021
8.4 x 1019
4.8 x 10-6
1.3 x 1020
3.1 x 10-4
9.2 x 10-5
9.5 x 1032
5.9 x 10-5
2.9 x 1021
8.4 x 1019
a)
9.5 x 1032
b)
3.1 x 10-4
c)
8.4 x 1019
d)
4.8 x 10-6
39.
Which is the smallest?
1.3 x 1020
2.9 x 1021
9.5 x 1032
8.4 x 1019
1.3 x 1020
2.9 x 1021
9.5 x 1032
8.4 x 1019
a)
1.3 x 1020
b)
2.9 x 1021
c)
9.5 x 1032
d)
8.4 x 1019
40.
Add using scientific notation.
(5.2 x 10⁷) + (3.01 x 10⁴)
(5.2 x 10⁷) + (3.01 x 10⁴)
a)
5.20301 x 10¹¹
b)
.520301 x 10⁷
c)
5.20301 x 10⁷
d)
5.20301 x 10⁸
41.
Subtract using scientific notation.
(2 x 10³) - (1.9 x 10²)
(2 x 10³) - (1.9 x 10²)
a)
1.81 x 10⁵
b)
1.81 x 10³
c)
1.81 x 10⁶
d)
1.81 x 10⁴
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