17(1)(2)(3)
1/17+2/17+3/17+4/17+.+17/15+16/17用简便计算要详细
(3/8+2/17)×8+1/17 的简便计算
(2/3+1/5)+(2/3-12/17)-(1/5+5/17)怎么简算
(2/3-1/5)+(2/3-12/17)-(1/5+5/17)用简便方法计算
1+2/3*5+3/5*8+4/8*12+5/12*17+1/17
1又4/17*(2又2/3-3/4)+11/12除以17/21
(1)17-2的立方÷(-2)×3=
计算.(1)17-2的立方÷(-2)×3=
x+2/3-1/2=17/18 解方程
-1/2 .2/5.-3/10.4/17找规律
2/3除以6/17+17/3除以1/6简便运算
(-1-1/17)²×17/18+(-99又2/3)×24