西电杰出校友:一道数学题
来源:百度文库 编辑:杭州交通信息网 时间:2024/04/29 22:55:48
. . . .
0.12+0.23+0.34+0.45=
0.12+0.23+0.34+0.45=
1.14
0.12+0.23+0.34+0.45
=0.11*1+0.01+0.11*2+0.01+0.11*3+0.01+0.11*4+0.01
=0.11*(1+2+3+4)+0.04
=0.11*10+0.04
=1.14
等于:0.12+0.23+0.34+0.45=1.14
0.12+0.23+0.34+0.45=1.14
1.140
1.14,这有什么难的吗?