[1.9+1.9*(4.8-3.81)]/(2.9-2.8)
[1.9+1.9*(4.8-3.81)]/(2.9-2.8)
【1.9+1.9*(4.8-3.81)】/(2.9-2.8)怎么简算?
股票中 2.8 1.9
(1.9-1.9*0.9)/(3.8-2.8)简便运算
用简便方法计算19.5-1.9-2.9-3.9
(2.4×4.8×9.5)÷(1.9×1.7×2.4)的简算急!
(3.4*4.8*9.5)/(1.9*1.7*2.4)如何简便计算?
简便计算7.08×0.4×12.5 19.5-1.9-3.9 (这道题要用两种简便方法计算)19.5-1.9-2.9-3
5.2*99 简便计算 9-7.2-0.8简便计算 37.4*10.1简便计算 2.9-(1.9+0.8)
2.9-(1.9+0.8) 4.32+17.61+5.68+2.39 37.4×10.1 5.7+
12.6乘7.6乘2.32除以(1.9乘1.4乘2.9) 等于几?简算
1.23÷1.9+1.9-0.73÷1.9怎样简便计算