1-(2/15+2/35+2/63+2/99)简便
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/02 17:49:23
x B1Ei(4]Dއ Ep"Ge0
A#9RZHmTr_oe/cZ-P&8m$tP?#p$delTM25_9I8ݡ?;w>x
1-(2/15+2/35+2/63+2/99)简便
1/3+2/8+2/15+2/24+2/35+2/48+2/63+2/80
(1/15 1/35 1/63 1/99)*2
2/15+2/35+2/63+2/99+2/143
2/3+2/15+2/35+2/63+2/99
2/3+2/15+2/35+2/63=?
2/3+2/15+2/35+2/63简便运算
2/15+2/35+2/63+2/99
2/15+2/35+2/63+.+2/323=
找规律:1/3,-2/15,3/35,-4/63( ),( )
找规律1/3 -2/15 3/35 -4/63
找规律:1/3,-2/15,3/35,-4/63
1/3 -2/15 3/35 -4/63 ( ) ( )
找规律:1/3,-2/15,3/35,-4/63
1/3 -2/15 3/35 -6/63 ( ) ( )
1/3,-2/15,3/35,-4/63,( ),( ),……
2/3+2/15+2/35+2/63+1/9这道题怎样简算?
15/2(15分之2)+35/2+63/2+99/2+143/2=多少,