352 +399简便计算?

2024-12-26 23:17:52
推荐回答(3个)
回答1:

简便计算过程方法如下
解:352+399
=352+(400-1)
=352+400-1
=752-1
=751

回答2:

352 +399
=351+1+399
=351+400
=751

回答3:

简便计算
352 +399
=352+400-1
=752-1
=751