2[1-13
2-1,13+2,13+2,(
2[1-13
13/19+1/2-13/19 (简算)
2-1 13+2 13+2 ( )规律
1、(-5)*3/13+(-5)*(-2/13)-5*1/13+0.125*(-14/13)*(-8)
excel中怎么将13-1-1,13-2-1,13-3-1,13-10-1,13-11-1,13-12-1进行排序呢?
7/13×5/8+2/13×7/16-1/13×3又1/2
1、(-5)*3/13+(-5)*(-2/13)-5*1/13+0.125*(-14/13)*(-8)=4/13求【过程
(1.2*2.4*4.8+2*4*8+1/13*2/13*4/13)/(1.2*3.6*10.8+2*6*18+1/13
简便计算:(2/9+1/13)x9+4/13
16/13-(3/13-1/2)怎样简便运算方式
7/13-(1/2-6/13)简便计算