12.5×(32+16)×2.5怎么巧算
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![12.5×(32+16)×2.5怎么巧算](/uploads/image/z/434050-34-0.jpg?t=12.5%C3%97%2832%2B16%29%C3%972.5%E6%80%8E%E4%B9%88%E5%B7%A7%E7%AE%97)
12.5×(32+16)×2.5怎么巧算
12.5×(32+16)×2.5
怎么巧算
12.5×(32+16)×2.5怎么巧算
12.5×(32+16)×2.5
=12.5×48×2.5
12.5×1.5x8x4×2.5
=1.5x100x10
=1500
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