What numbers have 70 as a multiple?

Answer 1

(i) There is an infinite number of answers e.g. 7 and 14, 7 and 21, 7 and 28 etc, 14 and 21, 14 and 35, 14 and 49 etc, 21 and 28, 21 and 35, 21 and 49, etc

(ii) Several answers: 7 and 10, 10 and 14, 2 and 35, 5 and 14 and so on.

Answer 2

List the multiples of 7.

List the multiples of 10.

70 will appear on both lists.

70 is a common multiple of 10 and 7.

Answer 3

(35,2)(14,5)(10,7)

Answer 4

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