如题所述
32x12.5
=12.5x32
=12.5x8x4
=100x4
=400
=12.5x32
=12.5x8x4
=100x4
=400
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第1个回答 2016-12-05
用简便方法计算:
32x12.5
=8×4×12.5
=8×12.5×4
=100×4
=400,本回答被提问者采纳
32x12.5
=8×4×12.5
=8×12.5×4
=100×4
=400,本回答被提问者采纳
第2个回答 2016-12-05
=4×8×12.5
=4×100
=400
=4×100
=400