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Math Review

Total questions: 38

Worksheet time: 2hrs 28mins

Name
Class
Date
1.

The record high temperature recorded one year was 93 degrees F while the record low temperature that year was -21 degrees F. How much warmer was the high temperature than the low temperature?

a)

114 degrees

b)

-72 degrees

c)

72 degrees

d)

-114 degrees

2.

Find 5(-12)

a)

60

b)

-60

c)

-45

d)

-17

3.

What is the definition of a variable?

a)

A letter or symbol that represents an unknown quantity

b)

The little number or letter used to raise to a power

c)

The number in front of a variable

d)

The number with no variable

4.
Which of the following is an equation?
a)
6x + 2x - 6
b)
6x2 + 10 = 25
c)
6x2 + 10 - 25
d)
10y - 6 + 34u
5.
33 = 4a - 7
a)
a=-10
b)
a=10
c)
a=4.5
6.
-3a + 8 = 14
a)
a= -2
b)
a= -7.5
c)
a= 2
d)
a= 6
7.
What is the first step in solving this equation:
5x + 7 = 12
a)
Divide by 5
b)
Subtract 5
c)
Multiply by 7
d)
Subtract 7
8.

What is 90% as a decimal?

a)

.85

b)

.9

c)

.09

d)

1.3

9.

Solve for x:


3x + 14 = 26

a)

x = 6

b)

x = 3

c)

x = 1

d)

x = 4

10.

What is the first step to solve this equation?


-11 + 3x = 12

a)

subtract 3x from both sides

b)

subtract 11 from both sides

c)

divide each side by 3

d)

add 11 to both sides

11.

Solve for x. −4x+7=15-4x+7=15  

a)

x=−32x=-32  

b)

x=2x=2  

c)

x=5.5x=5.5  

d)

x=−2x=-2  

12.
Select the value equivalent to 10-2 ?
a)
0.01
b)
0.001
c)
0.02
d)
0.002
13.
Which is the correct exponent ? 0.000001 = 10?
a)
6
b)
5
c)
-6
d)
5
14.
1/100,000 is equivalent to 
a)
10-4
b)
10-5
c)
104
d)
105
15.
Whats any number to the power of zero?
a)
1
b)
0
16.
Select the correct answer.
10 - 2 is the same as:
a)
-1/102 and 0.02
b)
-1/102 and -0.02
c)
1/102 and -0.01
d)
1/102 and 0.01
17.
Write 1/102 using negative exponents.
a)
1/10−2
b)
10−2
c)
−102
d)
2−10
18.
Write the following as a negative exponent.
1/10 x 1/10 x 1/10 x 1/10
a)
10-4
b)
104
c)
1/10-4
d)
1/10,000
19.
Which power of ten is equivalent to 1 ? 
a)
101
b)
10-1
c)
100
d)
10-2
20.
These are all true but which is the expanded form of 10-3 is  
a)
1/10 x 10 x10
b)
0.001
c)
1/103
d)
1/1,000
21.

105

a)

100000

b)

1000000

c)

10000

d)

10000000

22.
10-6
a)
1/10000
b)
-100,000
c)
1/100
d)
0.000001
23.
Change from standard form to scientific notation: 12,000,000
a)
12.0  x  107
b)
0.12  x  107
c)
1.2  x  106
d)
1.2  x  107
24.
Change from standard form to scientific notation:  450,000
a)
4.5  x  105
b)
45  x  105
c)
4.5  x  104
d)
4.5  x  106
25.

Which of these numbers is the smallest?

a)

3.5 x107

b)

3 x107

c)

5 x107

d)

5.5 x107

26.

Which of these numbers is the greatest?

a)

9 x 109

b)

8.1 x108

c)

9.02 x109

d)

6.35 x107

27.

Place the following numbers in order from least to greatest:

7.8 x 106, 5.1 x 104, 1.25 x 105, 4.09 x 104

a)

4.09 x 104,

1.25 x 105,

5.1 x 104,

7.8 x 106

b)

4.09 x 104,

5.1 x 104,

1.25 x 105,

7.8 x 106,

c)

1.25 x 105,

4.09 x 104,

5.1 x 104,

7.8 x 106,

28.
Which number is the greatest?
a)
5.25 x 105
b)
2.55 x 105
c)
5.55 x 105
d)
5 x 105
29.

Order the following from

greatest to least:

5 x 103

3.2 x 108

1.2 x 108

7 x 105

a)

7 x 105 , 5 x 103 , 3.2 x 108, 1.2 x 108

b)

3.2 x 108, 1.2 x 108, 7 x 105, 5 x 103

c)

1.2 x 108, 3.2 x 108, 5 x 103 , 7 x 105

30.
50.1 x 10-3  >  4.8 x 10-1
a)
True
b)
False
31.
Which is the largest?
4.8 x 10-6
3.1 x 10-4
9.2 x 10-5
5.9 x 10-5
a)
4.8 x 10-6
b)
3.1 x 10-4
c)
9.2 x 10-5
d)
5.9 x 10-5
32.

Fill in the blank: Which number fits in the blank?

3.1 x 10-2, 3.2 x 103, _________, 3.3 x 104

a)

9.2 x 102

b)

4.3 x 103

c)

4.5 x 105

d)

1.2 x 10-3

33.

5.79 x10-7 > 5.32 x10-7

a)

True

b)

False

34.
Which is the smallest?
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
35.
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
a)
9.5 x 1032
b)
3.1 x 10-4
c)
8.4 x 1019
d)
4.8 x 10-6 
36.
Which of the following numbers is the SMALLEST?
a)
8.7 x 103
b)
3 x 104
c)
1.3 x 108
d)
9 x 102
37.

Compare: 5.01×108       5.1×1085.01\times10^8\ \ \ \ \ \ \ 5.1\times10^8  

a)

>>  

b)

<<  

c)

==  

38.
The table shows the mass in grams of one atom of each of several elements. List the elements in order from the least mass to greatest mass per atom.
a)

hydrogen, oxygen, carbon, gold, silver

b)

hydrogen, oxygen, gold, siver, carbon

c)

carbon, oxygen, silver, gold, hydrogen

d)

gold, oxygen, carbon, silver, hydrogen

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