462+199怎么简便计算?
来源:学生学帮网 编辑:学帮网 时间:2024/06/01 11:38:36
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
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