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1/2•4•15•8

 May 20, 2016
 #1
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1/2*4*15*8 = 240

 May 21, 2016
 #2
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\(\frac{1}{2}\times4\times15\times8=2\times15\times8 = 30\times8 = 240\)

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 May 22, 2016

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