S2 Quiz Algebraic Expression

Simplify the following expression:

3c + 8 - 5c + 7 + 8c

• 10c + 15

• 6c + 15

• 6c - 15

• 10c - 15

The distance around the edge of this shape is ... unit.

• 3x + 10

• 3x 10

A piece of ribbon is 𝑦 cm long. Ashley cut it into 4 equal pieces to do her 4 sisters’ hair. Write the expression for the amount of ribbon used for each sister.

• 4y

• y + 4

• 4 - y

After $ 𝑥 of discount, Emma paid $159 for her new sewing machine. Write the expression for the original price of the sewing machine.

• 159x

• x + 159

• x - 159

Write an expression based on the sentence below:

four times a number, decreased by six

• 6x + 4

• 6x - 4

• 4x + 6

• 4x - 6

Write the expression for:

six times the sum of nine and a number

• 9 . (6 + x)

• 9 . (6 - x)

• 6 . (9 + x)

• 6 . (9 - x)

What is the expansion of:

4 . ( 2a + 3)

• 8a + 7

• 8a + 12

• 6a + 7

• 6a + 12

Expand this bracket:

6 . (c - 5)

• 6c + 11

• 6c - 11

• 6c + 30

• 6c - 30

If a = 2, b = 3, and c = 5,

find the value of the expression 4a + 2b - c

• 19

• 16

• 9

• 6

If x = 3, y = -2, z = -6.

What is the value of x.y.z ?

• -36

• 36

• -7

• 7