75ᠧ27 19ᠧ25的简便方法?

2025-03-01 23:33:12
推荐回答(1个)
回答1:

75×27+19×25
=25×3×27+19×25
=25×81+19×25
=25×(81+19)
=25×100
=2500
以上为简便方法