来自陆文聪的问题
用简便方法计算:354x7+360+355+347
用简便方法计算:354x7+360+355+347
1回答
2020-07-15 09:26
用简便方法计算:354x7+360+355+347
用简便方法计算:354x7+360+355+347
354x7+360+355+347
=354x7+354+6+354+1+354-7
=354x7+354x3
=354x(7+3)
=3540