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WorksheetsYr 9 Algebra Intro
Total questions: 36
Worksheet time: 2hrs 2mins
Name
Class
Date
1.
Which expression represents the age of a person ten years younger than you?
a)
n - 10
b)
10 n
c)
10 + 13
d)
10 - n
2.
Write an algebraic expression for the following.
Divide m by 7, and then subtract 4 from the quotient.
Divide m by 7, and then subtract 4 from the quotient.
a)
1/4m -7
b)
(m/7) - 4
c)
m-7 + 4
d)
7m + 4
3.
Write the phrase as an expression.
twice a number x plus 8
a)
2 + 8x
b)
2x + 8
c)
2+x+8
d)
8x - 2
4.
What is an algebraic expression for "the difference of r and 3"?
a)
r/3
b)
r + 3
c)
r - 3
d)
3r
5.
What is the algebraic expression for "the sum of n and 9"?
a)
n - 9
b)
n + 9
c)
n/9
d)
9n
6.
What word phrase can you use to represent "5x + 2"?
a)
five times the sum of a number x and two
b)
two times the sum of a number x and five
c)
a number x times the sum of five and two
d)
the sum of five times a number x and two
7.
six times the number of girls
Let g = number of girls
a)
6 + g
b)
6g
c)
g - 6
d)
6/g
8.
Write the phrase as an expression.
12 fewer than 22
a)
22/12
b)
12 - 22
c)
22 - 12
d)
22 x 12
9.
7 divided by c
a)
c/7
b)
7/c
10.
d + d + d + d =
a)
d4
b)
4d
c)
d4
d)
4 + d
11.
d4 =
a)
4 + d
b)
d + d + d + d
c)
4d
d)
d x d x d x d
12.
If x=5,find the value of 7x-1
a)
34
b)
36
c)
35
13.
If y=4,find the value of 3y+5
a)
27
b)
12
c)
17
14.
Evaluate u + xy, for u = 18 , x = 10 , and y = 8.
a)
188
b)
36
c)
98
d)
224
15.
Evaluate bc + 5a
when a = 3, b = 4, and c = -6
when a = 3, b = 4, and c = -6
a)
9
b)
38
c)
-38
d)
-9
16.
A symbol, usually a letter, that is used to represent an unknown number.
a)
Term
b)
Product
c)
Coefficient
d)
Variable
17.
What is a variable in Algebra?
a)
Something that changes
b)
An unknown value
c)
An equation
d)
A numeric expression
18.
What is an algebraic expression made of?
a)
Numbers and operations
b)
Numbers and multiplication
c)
Addition and multiplication
d)
Numbers and variables
19.
What property is being used in the equation below?
-8(2x+3)= -16x-24
-8(2x+3)= -16x-24
a)
Commutative
b)
Distributive
c)
Inverse
d)
Reflexive
20.
What property is being used in the equation below?
(-3+2)+1=-3+(2+1)
(-3+2)+1=-3+(2+1)
a)
Associative
b)
Commutative
c)
Inverse
d)
Symmetric
21.
Which property is illustrated by this statement.
8 + 8.3 = 8.3 + 8
8 + 8.3 = 8.3 + 8
a)
Inverse Property of Multiplication
b)
Commutative Property of Additon
c)
Inverse Property of Addition
d)
Associative Property of Addition
22.
Simplify
1.7m2 + 6.5n - 4n + 2.5m2 - n
1.7m2 + 6.5n - 4n + 2.5m2 - n
a)
4.2m2 + 1.5n
b)
4.2m2 - 1.5n
c)
1.5m2 - 4.2n
d)
1.5m2 + 4.2n
23.
Combine like terms:
13k+6-8m+9+k
13k+6-8m+9+k
a)
14k-8m+15
b)
8k+14-15m
c)
14k-2m
d)
15-14k+6m
24.
Simplify:
4(3x+6)-7x
4(3x+6)-7x
a)
7x+10-7x
b)
5x+24
c)
7x+13x
d)
12x+6-7x
25.
What is the operation of the following expression? x/5
a)
multiplication
b)
addition
c)
subtraction
d)
division
26.
Combine like terms:
3x+4+2x
3x+4+2x
a)
5x+4
b)
7x+2x
c)
9x
d)
6x+3
27.
Simplify:
6(x+5)+3x
6(x+5)+3x
a)
6x+30+18x
b)
9x+30
c)
15x+6x
d)
6x+11+18x
28.
5a - 6b + 4a + 3b
a)
9a - 3b
b)
a + b
c)
6ab
d)
-b + a
29.
2x + 3
a)
5
b)
5x
c)
Can't be simplified
30.
What is
7y + 15 − 7y − 8?
7y + 15 − 7y − 8?
a)
3
b)
5
c)
6
d)
7
31.
Simplify the expression by combing like terms.
7x - 5x + 3x² + 6y
7x - 5x + 3x² + 6y
a)
2x + 3x² + 6y
b)
12x + 3x² + 6y
c)
5x + 6y
d)
7x - 5x
32.
What is the simplified form of this expression (simplificar) :
3x+4+5x+3
3x+4+5x+3
a)
15x
b)
8x+7
c)
7x+8
33.
How many terms are in the expression below:
-3c + 7d
-3c + 7d
a)
one
b)
two
c)
three
d)
four
34.
How many terms are in the expression below:
3x - 6 + 4b + 5 + 7 - 2x
3x - 6 + 4b + 5 + 7 - 2x
a)
five
b)
eight
c)
six
d)
nine
35.
Which terms below are NOT like terms.
a)
x and 2x
b)
5 and 19
c)
3y³ and 6y³
d)
5n and 5y
36.
Which one is the coefficient?
6f2 - 9
6f2 - 9
a)
6
b)
f
c)
2
d)
9
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