11/8-(2/3-1/4)
11/8-(2/3-1/4)
计算矩阵行列式3 3 8 11 2 1 11 4 2 19 1 1 0
11/9-1/2/4/5-3/8 简便计算
[2-(4/1-8/3)]×11/6
3x+1/8 + x/2=11/4
4 9 16 7 11 2 15 3 1 8
(1).11/2*5+11/5*8+11/11*14+11/14*17 (2).1+1/2+3/4+7/8+15/16+
简算(4又2/7+2又2/11)/(1又3/7+8/11)=?
5/6+2/9+7/18 11/12-(3/8-1/12) 2/3-1/4-1/6 7/11-1/5+8/11-4/5
(3/11-6/7+3/4)+8/11+6/7-1/2)简便方法
24点3则:11,11,1,5;8,5,2,7;1,4,5,6.
4/1*2*3+5/2*3*4+.+11/8*9*10=?