2354 697-298怎么简便运算?

2025-03-31 22:20:56
推荐回答(3个)
回答1:

简便计算过程方法如下

解:2354+697-298
=2354+(697-298)
=2354+399
=2354+400-1
=2754-1
=2753

回答2:

2354+697-298
=2353+698-298
=2353+400
=2753

回答3:

2354697-300+2=2354399