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2016-09-18
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67 x 3.5 + 3.2 x 35
= 67 x 3.5 + 32 x 3.5
= 3.5 x (67 + 32)
= 3.5 x 99
= 3.5 x (100 - 1)
= 3.5 x 100 - 3.5
= 350 - 3.5
= 346.5
= 67 x 3.5 + 32 x 3.5
= 3.5 x (67 + 32)
= 3.5 x 99
= 3.5 x (100 - 1)
= 3.5 x 100 - 3.5
= 350 - 3.5
= 346.5
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