如题所述
第1个回答 2020-02-01
应该是:
78×32+23×32-32
=(78+23-1)X32
=100X32
=3200
祝学习进步,新年快乐!
78×32+23×32-32
=(78+23-1)X32
=100X32
=3200
祝学习进步,新年快乐!
第2个回答 2020-02-01
32×37+23×64-32的简便算法
=32x37+46x32-32
=32x(37+46-1)
=32x82
=(30+2)x82
=30x82+2x82
=2460+164
=2624本回答被网友采纳
=32x37+46x32-32
=32x(37+46-1)
=32x82
=(30+2)x82
=30x82+2x82
=2460+164
=2624本回答被网友采纳
第3个回答 2020-04-27
发酵法 v 机构和 v 才女