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10 May, 16:40

Expresion that shows how to use the halving & doubling strategy to find 28 x 50

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  1. 10 May, 16:43
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    easy peassy : the answer is 1400

    so you double the 50=100. Then you halve the 28=14. Then you multiply and it is a trailing zero so 14x100=1400 (or just add the two zeros in 100)

    P. S

    Im in the fifth grade
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