628+54×25怎么能巧算

628+54×25怎么能巧算
2024-11-20 23:21:47
推荐回答(2个)
回答1:

628+54×25怎么能巧算
=628+(50+4)x25
=628+50x25+4x25
=628+1250+100
=1878+100
=1978

回答2:

628+54×25
=628+50×25+4×25
=628+1250+100
=1978