小升初：解比例及解方程(共11页)

1、精选优质文档-倾情为你奉上解方程及解比例练习题解比例:x:10=: 0.4:x=1.2:2 =:=:x 0.8:4=x:8 :x=3:121.25:0.25=x:1.6 = =x: =6: = 45:x=18:26 2.8:4.2=x:9.6 :x=: 2.8:4.2=x:9.6 x:24= : 8:x=:=x: 0642.4x6x x x x0.71050x40 1.3x5.220 x3.6618 x 解方程X X= 2X + = 70%X + 20%X = 3.6X×=20× 25% + 10X = X - 15%X = 68XX121 5X3× X÷

2、;126X5 =13.4 3X=X÷= XX= 4X6×=2 ÷X= X = X = × X÷ =× 4x3 ×9 = 29 x + x = 4X21×=4 6X5 =13.4 X-X= 46385X= X= X÷=X÷=12 X= X=×X÷=÷ X-0.25= =30% 4+0.7X=102 X+X=42 X+X=105 X-X=400 X-0.125X=8 = X+X=18 X×( + )= x0.375x= x×+=4× XX1

3、2 5 X2.4×580.36×5- x = (x- 4.5) = 7 x- 25%x = 10x- 0.8x = 16+6 20 x 8.5= 1.5 x- x -4= 21 X25%X=90 XX= X X= 2X + = 70%X + 20%X = 3.6 X×=20×25% + 10X = X - 15%X = 68 XX121 5X3× X÷12 6X5 =13.4 3X= X÷= XX= 4X6×=2 ÷X= X = X = × X÷ =× 4x3 ×9

4、 = 29 x + x = 4 X21×=4 6X5 =13.4 X-X= 4638 5X= X= X÷= X÷=12 X= X=× X÷=÷ X-0.25= =30% 4+0.7X=102 X+X=42 X+X=105 X-X=400 X-0.125X=8 = X+X=18 X×( + )= x0.375x= x×+=4× XX12 5 X2.4×58 0.36×5- x = (x- 4.5) = 7 x- 25%x = 10 X25%X=90 x- 0.8x = 16+6 20 x

5、 8.5= 1.5 x- x -4= 21 XX= X X= 2X + = 70%X + 20%X = 3.6 X×=20× 25% + 10X = X - 15%X = 68 XX121 5X3× 3X=X÷= XX= 4X6×=2 ÷X= X = X = × X÷ =× 4x3 ×9 = 29 x + x = 4X21×=4 6X5 =13.4 X-X= 46385X= X= X÷=X÷=12 X= X=×X÷=÷ X-0.25= =30% 4+0.7X=102 X+X=42 X+X=105 X-X=400 X-0.125X=8 = X+X=18 X×( + )= x0.375x= x×+=4× XX12 5 X2.4×580.36&#