WorksheetsChapter 1 Variable_ZH
Total questions: 20
Worksheet time: 30mins
Name
Class
Date
1.
A variable represents what is ______________.
a)
the answer
b)
the operation
c)
the difference
d)
unknown
2.
A variable is . . .
a)
an awesome number
b)
a number represented by a letter
c)
an infinite number
d)
a number multiplied by another number
3.
5p + 4h - 2
Which are the variables?
Which are the variables?
a)
5p, 4h, 2
b)
2
c)
p, h
d)
5, 4
4.
A comprehension test was given to students after they had studied textbook material either in silence or working together.
What is a possible control variable?
What is a possible control variable?
a)
Comprehension Test Results
b)
The thickness of the text book
c)
All students working in Silence
d)
Number of students working together and in Silence
5.
Write the phrase as an expression.
twice a number x plus 8
twice a number x plus 8
a)
2 + 8x
b)
2x + 8
c)
2(x+8)
d)
8(2+x)
6.
5x - 14 = 8x + 4
a)
x = 6
b)
x = -6
c)
x = -18/13
d)
x = 10/3
7.
7x - 4 = 3 + 8x
a)
x = 7
b)
x = -7
c)
x = 2/7
d)
x = 11
8.
14p - 8 = 22 + 20p
a)
-5
b)
5
c)
30
9.
8x - 8 = -4x + 16
a)
x = 8
b)
x = 16
c)
x = 24
d)
x = 2
10.
4x+2x+3x
a)
10x
b)
9x
c)
11x
d)
8x
11.
4(7x+5y)
a)
28x+5y
b)
11x+9y
c)
7x+20y
d)
28x+20y
12.
3(5 + 3x) - 4x
a)
-x + 8
b)
7x + 15
c)
5x + 15
d)
7x + 8
13.
3(2 + x) + 6x - 4
a)
6x + 5
b)
9x + 1
c)
9x + 2
d)
3x + 8
14.
22 - [(5 + 2) + (16 - 4)]
a)
5
b)
11
c)
3
d)
12
15.
Simplify the Expression.
9z - 21 - 3z + 10
9z - 21 - 3z + 10
a)
Simplified
b)
9z - 21 - 7
c)
9z - 11 -3z
d)
6z - 11
16.
What is the sum of these fractions in lowest terms?
a)
4/5
b)
3/20
c)
17/20
d)
4/20
17.
9(2x + 2y)
a)
36xy
b)
18x + 18y
c)
18x + 18
d)
11x + 11y
18.
⅓ (3x – 24)
a)
9x - 72
b)
-x + 6
c)
x - 8
d)
9x + 8
19.
What is the simplified version of this expression? −4(8r+3)
a)
−32r−12
b)
32r−12
c)
−32r+12
d)
32r+12
20.
3x (9 + 2y - 3z)
a)
27x + 6xy - 9xz
b)
24xyz
c)
27 + 6y - 9z
d)
27x + 6x - 9x
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