462+199怎么简便计算?
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 03:08:10
![462+199怎么简便计算?](/uploads/image/z/355098-66-8.jpg?t=462%2B199%E6%80%8E%E4%B9%88%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%3F)
462+199怎么简便计算?
462+199怎么简便计算?
462+199怎么简便计算?
462+200-1=662-1=661
=462+200-1
=662-1
=661
462+199=462+200-1=662-1=661
462+100-1=561
462+200=662-1=661
462+199=460+200+2-1=661
=462+200-1
=662-1
=661