Mathematics Year 6 by Serena Alexander

Author:Serena Alexander [Alexander, Serena]
Language: eng
Format: epub
ISBN: 978-1-4718-3165-2
Publisher: Galore Park
Published: 2014-03-14T16:00:00+00:00

This means that a has been divided by 4 and the result has been multiplied by 3 to get 9

Therefore you must do the opposite. Divide 9 by 3 and then multiply the result by 4 to find a.

a = 9 ÷ 3 × 4 Do the division first if you can, as you get smaller numbers.

= 12

Check: 12 ÷ 4 = 3, 3 × 3 = 9

Examples:

(i) If of a number is 8, what is the original number?

Check: 20 ÷ 5 = 4, 4 × 2 = 8

(ii) If of a bag of sugar weighs 450 g, how many kilograms were there in the original bag?

Check: 1200 ÷ 8 = 150, 150 × 3 = 450

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