Revision - Algebra & Fractions (First 2 sub topics)

Subtract y from 12.

• 12 − y

• y − 12

• 12y

Find the product of 3 and 2y.

• (3 + 2y)

• 3 × 2y

• 32y

• 6y

½ ÷ 2 =

Find the value of 3y + 2, when y = 4.

2 ÷ ⅔ means

• the number of groups of ⅔ in 2 wholes.

• the number of groups of 2 in ⅔.

Simplify 10 + 5y − 2 − 2y

• 7y + 8

• 12 + 3y

• 3y + 8

Simplify 20a − 3 − 2a + 10

A string which is ⅖m long has been cut into 8 equal parts. What is the length of each part?

Mrs Lee baked 120 cookies. She gave y cookies to her sister and packed the remaining cookies equally into 3 containers. How many cookies were there in one container? Which of the following shows the steps correctly?

• 120 − y ÷ 3

• (120 − y) ÷ 3

• 120 ÷ 3 − y

Three boys painted 3/10 of a wall. Each boy painted an equal area. What fraction of the wall did each boy paint?

• 9/10

• 7/10

• 1/10