六年级数学计算(解方程)1、解方程:+X = X = 40 2X = 15X = XX = X+X = 185.5x3x = 1.75 X(1+)= 25 X+ = X = (1)X = X = X = 15 X = 24 X(+)= X = 10 X = 18 X = 8 X = 4 x+45 = 12 X = 18 小学数学分数混合运算习题 1(+) 7 3(1) (+) + 25() + ()(+) (1)4 1(+)3.5 (1)4 () (+)(1) (+) 8 12(1) 分数简便运算题:3+ +7 +72(+) 4 2+ + + (9+) 2 + 30(+) + +6 12(+) +5 4 ()70 48(+)9+ 5 24(+)(+)6027 8+2 15+15 4 / 4