36ᠧ79+79+79ᠧ54的简便计算方法

2024-11-20 15:42:47
推荐回答(1个)
回答1:

36✘79+79+79✘54
=79x(36+1+54)
=79x91
=80x91-91
=7280-100+9
=7189