0.11+0.22+0.33+0.44+0.55+0.66+0.77+0.88+0.99巧算
0.11+0.22+0.33+0.44+0.55+0.66+0.77+0.88+0.99巧算
0.77×0.33÷0.44÷0.99 怎么简便运算
用简便方法计算:0.22+0.44+0.66+0.88+1.1+1.12+2.24+3.36+4.48+5.60 和
0.22+0.44+0.66+0.88+1.1+1.12+2.24+3.36+4.48+5.6的和,要求简便计算
找规律填数字0.11, 0.22, 0.44,( )1.76,( )
简便计算0.9-0.11+0.8-0.22+0.7-0.33+0.6-0.34.
0.88×125巧算
0.88×0.125巧算
为什么1/3+2/3=1 而 0.66……+0.33……=0.99…… 难道1=0.99……吗 省略号代表无限循环下去
0.1+0.11+1+0.99+0.9简便算法
0.11+0.12+……+0.98+0.99=
0.11+0.13+0.15+.+0.97+0.99 简便计算