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WorksheetsSubstitution
Total questions: 25
Worksheet time: 52mins
Name
Class
Date
1.
Work out the value of the following expressions when a = 3, b = 4 and c = 5.
a + b
a + b
a)
7
b)
8
c)
9
d)
6
2.
Work out the value of the following expressions when a = 3, b = 4 and c = 5.
2a
2a
a)
5
b)
6
c)
8
d)
10
3.
Work out the value of the following expressions when a = 3, b = 4 and c = 5.
3ab
3ab
a)
10
b)
12
c)
15
d)
36
4.
Work out the value of the following expressions when a = 3, b = 4 and c = 5.
2a2 + c2
2a2 + c2
a)
22
b)
34
c)
68
d)
43
5.
Work out the value of the expression when a = 3, b = 4 and c = 5.
a)
3
b)
1 1/3
c)
4
d)
1/3
6.
Work out the value of the expression when x = 3, y = 7 and z = 5.
y + x – z
a)
-5
b)
-3
c)
3
d)
5
7.
Work out the value of the expression when x = 3, y = 2 and z = 4.
a)
1
b)
-1
c)
1/5
d)
-6
8.
If y=7,find the value of 2(y+4)
a)
11
b)
22
c)
20
d)
18
9.
Work out the value of the expression when x = 3, y = 2 and z = 4.
a)
-3
b)
4
c)
3
d)
-4
10.
If a = 4 & b = 6, what is 3a + 5b?
a)
40
b)
42
c)
44
d)
46
11.
If x=5,find the value of 7x-1
a)
34
b)
36
c)
35
12.
If y=4,find the value of 3y+5
a)
27
b)
12
c)
17
13.
If a=6 and b= 7,find the value of 15-a-b
a)
2
b)
3
c)
4
14.
If a=4,b=5 and c=6,find 2c-a-b
a)
4
b)
3
c)
6
15.
When x = 3, y = 6 and z = 7, find 2x - z
a)
-1
b)
-2
c)
-3
d)
-4
16.
If x=5,find the value of 7x-1
a)
34
b)
36
c)
35
17.
If y=7,find the value of 2(y+4)
a)
11
b)
22
c)
20
18.
If p=3 and q=5,find
p +q+2
p +q+2
a)
12
b)
10
c)
8
19.
Evaluate u + xy, for u = 18 , x = 10 , and y = 8.
a)
188
b)
36
c)
98
d)
224
20.
If a=3 , find 7−a
a)
2
b)
3
c)
4
d)
5
21.
If b=10 , find b40 .
a)
10
b)
2
c)
30
d)
4
22.
If c=5 , find 2c
a)
7
b)
8
c)
9
d)
10
23.
If d=11 , find d+3
a)
11
b)
12
c)
13
d)
14
24.
If e=8 , find e+e
a)
16
b)
88
c)
14
d)
0
25.
If f=−4 , find 3f
a)
12
b)
−12
c)
34
d)
−34
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