Number 3

4 marks · Normal

For the number 48:

(a)

Write down all the factors of 48.

[2 marks]

(b)

List the first four multiples of 48.

[2 marks]

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(a) 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

(b) 48, 96, 144, 192

Show mark scheme and worked solution

Marking points

B1 (a) · 2 marks · All 10 factors of 48 listed (in any order), no extras.

B2 (b) · 2 marks · First four correct multiples of 48 given: 48, 96, 144, 192 (any order).

Worked solution

a) The factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 48.

b) The first four multiples of 48 are: 48 × 1 = 48, 48 × 2 = 96, 48 × 3 = 144, 48 × 4 = 192.