125 x 5.6x1.2简便计算
问题描述：
125 x 5.6x1.2简便计算
答
应用125×8=1000进行简便计算
125 × 5.6×1.2
=125×8×0.7×1.2
=1000×0.7×1.2
=70×12
=840
答
125x5.6x1.2
=125x8x0.7x1.2
=1000x0.84
=840