Factorising

5 cups and 10 rabbits can be grouped as:

• 5 groups of 1 cup and 2 rabbits
  

• 3 groups of 2 cups and 7 rabbits

  
  

• 2 groups of 2 cups and 5 rabbits
  

• 1 group of 1 cup and 2 rabbits

The factors of y are:

• 1

• y

• 1 and y

• None

Enter the missing factor.

5m − 3mn =____ (5 − 3n )

• 5

• m

• n

• 3

What is the largest number that divides exactly into 8m , 12n and 20?

• 8

• 4

• 5

• 7

7y − 21 = 7( ____− 3)

• x

• 7

• 3

• y

When you write an algebraic expression as a product of its factors the process is called:

• expanding
  

• factorising

  
  

• removing the brackets
  

• finding the highest common factor

Complete this list of the factors of 6m.

1, 2, 3, 6, m,_____ , 3m and 6m

• 2

• m

• 2m

6 – 3d = ____(2 – d)

• 1

• 2

• 3

• 4

9a + 6 = 3(3a +___ )

• 1

• 2

• 3

• 4

25k – 15 = ___(5k – 3)

• 3

• 4

• 5

• 6