7.-六年级解方程计算题(最牛经典).doc

解方程提高训练
X－ X= 2X + = 70%X + 20%X = 3.6

X×=20× 25% + 10X = X - 15%X = 68

X＋X＝121 5X－3×＝ X÷＝12

6X＋5 =13.4 3X=

X÷= X＋X= 4X－6×=2

÷X= X = X = ×

X÷ =× 4x－3 ×9 = 29 x + x = 4

X－21×=4

6X＋5 =13.4 X-X= 4χ－6＝38 0.36×5- x =

5X= X= X÷= (x- 4.5) = 7

X÷=12 X= X=× x- 25%x = 10

X÷=÷ X-0.25= =30% x- 0.8x = 16+6

4+0.7X=102 X+X=42 X+X=105 20 x– 8.5= 1.5

X-X=400 X-0.125X=8 = x- x -4= 21

X+X=18 X×( + )= x－0.375x= X＋25%X=90

x×+=4× X－X＝12　　 　 　5 X－2.4×5＝8 X－X=