Question

176×36+25×38-38×1的简便计算？

Answer 1

176x36+25x38-38x1
=176x36+(25-1)x38
=176x36+24x38
=44x4x3x12+12x2x19x2
=4x12x(44x3+19)
=7248

Answer 2

176×36+25×38-38×1
=176×36+（25-1）×38
=176×36+24×38
=6*（176*6+4*38）
=6*（1056+152）
=6*1208
=7248