Algebra: Variables and Expressions

Algebra: Variables and Expressions

By Omar Shishani

Multiple Choice

If x = 2, find the value of:

x + 8

• 28

• 10

• 18

• 8

Multiple Choice

If x = 2, find the value of:

17 - x

• 19

• 15

• 10

• 7

Match

Match the following

• x + 5

  x = 2

• x + 10

  x = 5

• 9 - x

  x = 4

• 11 - y

  y = 2

• y - 9

  y = 10

7

15

5

9

1

• 7

• 15

• 5

• 9

• 1

Multiple Choice

If x = 4 and y = 9 find the value of:

x + y

• 13

• 14

• -5

• 16

Match

Match the following

• x + y

  x = 2, y = 3

• x - y

  x = 10, y = 2

• $$m\cdot n$$

  m = 3, n = 5

• $$\frac{m}{n}$$

  m = 24, n = 8

• $$a^2$$

  a = 7

5

8

15

3

49

• 5

• 8

• 15

• 3

• 49

Multiple Select

In what ways can I represent the multiplication of 5 and c.

• 5c

• $$5\times c$$

• $$5\cdot c$$

• $$\frac{5}{c}$$

• $$5\left(c\right)$$

Multiple Choice

If c = 3, find the value of:

5c

• 8

• 15

• 2

Multiple Choice

If a = 4 what is the value of

5a

• 25

• 20

• 54

Multiple Choice

Work out the value of the following expressions when a = 5

a²

• 10

• 20

• 15

• 25

Multiple Choice

Work out the value of the following expressions when b = 8

b²

• 16

• 88

• 64

Multiple Choice

when x = 5, What is the value of:

3x - 5

• 30

• 10

Multiple Choice

when x = 10, What is the value of:

3x - 7

• 35

• 23

• 25

• 20

Multiple Choice

Work out the value of the following expressions when a = 3, b = 4 and c = 5.

2a

• 5

• 6

• 8

• 10

Multiple Choice

Work out the value of the following expressions when a = 3, b = 4 and c = 5.

2 + b + c

• 11

• 15

• 9

• 8

Multiple Choice

Work out the value of the following expressions when a = 3, b = 4 and c = 5.

a² + c

• 10

• 20

• 15

• 14