2023年小升初解比例及解方程.doc

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=3:12

1.25:0.25=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:

0．6∶4＝2.4∶x　　　6∶x＝∶ ＝

∶＝x∶ ∶＝∶x x∶＝0.7∶

10∶50＝x∶40　　 　1.3∶x＝5.2∶20 x∶3.6＝6∶18

∶＝∶ x ＝ ＝

解方程
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

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×( + )= x－0.375x=

x×+=4× X－X＝12　　 　　5 X－2.4×5＝8

0.36×5- x = (x- 4.5) = 7 x- 25%x = 10

x- 0.8x = 16+6 20 x– 8.5= 1.5 x- x -4= 21

X＋25%X=90 X－X= 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 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×( + )= x－0.375x= x×+=4×

X－X＝12　　 5 X－2.4×5＝8 0.36×5- x =

(x- 4.5) = 7 x- 25%x = 10 X＋25%X=90
x- 0.8x = 16+6 20 x– 8.5= 1.5 x- x -4= 21

X－X= X－ X= 2X + =

70%X + 20%X = 3.6 X×=20× 25% + 10X =

X - 15%X = 68 X＋X＝121 5X－3×＝

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

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×( + )= x－0.375x=

x×+=4× X－X＝12　　 　　5 X－2.4×5＝8

0.36×5- x = (x- 4.5) = 7 x- 25%x = 10

x- 0.8x = 16+6 20 x– 8.5= 1.5 x- x -4= 21