9.35*77+935-17.7*3.5的简便算法
问题描述:
9.35*77+935-17.7*3.5的简便算法
答
9.35*77+935-17.7*3.5
=9.35*77+9.35*100-17.7*3.5
=9.35*177-17.7*3.5
=9.35*10*17.7-17.7*3.5
=(93.5-3.5)*17.7
=90*17.7
=1593