六年级数学下册解方程专项练习题

解比例:

六年级数学下册解方程专项练习题：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

计算下面各题，能简算的要简算.

××3 5×× × 4 ×

(+ )× 5 (+)×27 6 ×(×)

(- )× ×(7 - ) ×+ ×

×+× ×- × ×6 -× 6

21× 37× × 24 (+ 7 )× 25 ×+ × - ×

1- × + × ×(5 - )

12×(+ + ) ×(125 × 34) (+ )×7 ×5

× 199 × (24 + )× × 78

×+ ×0.4-2÷5×

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