Claudine Lim's answer to I.A's Primary 6 Maths Percentage Singapore question.
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tip: percentage decrease already signify (-) so there is no need to put a (-) sign in front of 9%
percentage change is given by the formula (new area-old area)/old area x 100%
percentage change is given by the formula (new area-old area)/old area x 100%
Date Posted:
5 years ago
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