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21-10-2014
Mathematics

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Write an expression that shows how to use the halving and doubling strategy to find 28x50

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21-10-2014

Double of 50 is 100, so 28*100=2800, now half of the answer is 2800/2=1400

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What are two reasons why West Africa strongly felt the effects of the slave trade? The West African countries lost most of their able-bodied men and women to th