
12.5×128×0.25×0.05×1.3的巧算怎么算?
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简便计算
12.5×128×0.25×0.05×1.3
=12.5x(8x4x4)x0.25x0.05x1.3
=(12.5x8)x(0.25x4)x(0.05x4)x1.3
=100x1x0.2x1.3
=26
12.5×128×0.25×0.05×1.3
=12.5x(8x4x4)x0.25x0.05x1.3
=(12.5x8)x(0.25x4)x(0.05x4)x1.3
=100x1x0.2x1.3
=26
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