(1)27÷9/10-3/7*21 (2) (3/7+2/3)÷(2/3-3/7) (3)5/6*(1/5-1/10)÷
(1)27÷9/10-3/7*21 (2) (3/7+2/3)÷(2/3-3/7) (3)5/6*(1/5-1/10)÷
(4/3-5/3)÷10/7 (3/2+9/2)÷21/20 1-14/5÷7/5
2-(5/1+3/1),(4/3-5/3)÷10/7,(3/2+9/2)÷21/20,1-14/5÷7/5,4/1÷(3
(7分之3+3分之2)÷(3分之2-7分之3) 3分之1÷5分之3+(27分之10+9分之2) (5分之2+3分之2)÷
(2÷3+3÷7+5÷21)÷21分之1÷0.28等于多少?
-42×[(1-7)÷6]+[(-5)3-3]÷(-2)3
能简算的要简算 (3/4-3/5)÷7/10 (2/3+2/9)÷20/21 1-5/14
(1+2+3+4+5+6+7+8+9+10)×250×111÷1000
15/16÷(5/12÷5/8+3/8) 6/7-6/7×(2/3+1/9) 【1-(1-2/3÷
6道能简算的要简算,(1)4/3×5/7-1/3÷7/5(2)30×(2/5+1/6)(3)1/2×2/5+9/10÷9
(1×2×3+2×4×6+4×8×12+7×14×21)÷(1×3×5+2×6×10+4×12×20+7×21×35)
9/14÷(1/3*6/7-1/14) 1/7+7/8*5/7-3/8 【1/2+(3/4-3/5)】÷7/10 简便计