-(2/13*78-1/3*78-1/6*78)
-(2/13-1/3-1/6)*78等于多少?
(-1/78)÷(1/13-1/2-1/3)-1.45×6+3.95×6
(2+78/19*1)+(2+78/19*2)+(2+78/19*3)+``````+(2+78/19*12)的答案是什
-(13分之2-3分之1-6分之1)×78要过程
2+3-1+5-6+78+9-45-7=?
1+2+3+.+77+78+79=
.急.5000-1-2-3-4-.-78
1+2+3+4...+78+79+80
1题:(4000-1-2-3-、、、-77-78=)2题(3000-2-4-6-、、、-78-80)
(1+78分之19 ×1)+(1+ 78分之19×2)+(1+ 78分之19×3)+ ………+(1+ 78分之19×12
(1+19/78×1)+(1+19/78×2)+(1+19/78×3)+……+(1+19/78×12)=?
78