北师大版五年级数学下册解方程100题

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解方程

1. 58 x = 112

2. 23 ÷x = 1

6 3. 4x +7.5=13

4. x -0.6 x =5

5. 56 ÷x =3.3

6. 54

x =10

7. x ÷21=43 8. 41χ+31χ=6

1

1 9. 8×134 -715 x =7

10. 20%χ-51=54 11. x -8

3

x =20 12. 25 x = 49 ×38

13. x -41x = 24 14. 4 x + 21x = 9 15. 95+ 2 x = 3

2

16. 85 x -53= 5

2 17. 31 x +41

x =364 18. (1-91)x =89

19. 53 x =20×43 20. 32 x -52 x =12 21. 7 x -125=3

2 22. x -4

1

x =91 23. 4 x +7.5=13 24. 9.8-2 x =3.8

25. 16a+ 13= 12 26. x +3x =24 27. 13 x +1

2 x =5

28. 8.65+13-a +16=0 29. x -15 x =20 30. 4

9 x =36

31. 45 x = 1825 32. x -13 x =12 33. 3 x -18 =7

16

34. x = 35. x - x =15 36. x ÷1

2= 0.6

37. 15 x +6 x = 168 38. x - = 39. 2 x +5 = 40

40. 3.5 x = 140 41. 20% x =30 42. 5 x -3×107 =57

43. 5- 23 x = 13 44. 2 x - 43 x =1

2 45. 1.5 x =2.25

46. x ÷58 =1017 47. x ÷ = 48. x -30% x =

49. 8×(x -)= 50. (1-)x =14 51. 37.5+20% x =69.5

54151685412

1

811331685207

434542

52. x - x = 53. 4.2 × 3—3x = 5.1 54. 13.7—x = 5.29

55. x = 56. 20% x -= 57. x + x =

58. 1÷2 x = 59. - x = 60. x ÷=

61. x - x =15 62. x ×20% = 20 63. x ÷×=

64. 4(4 x -1)=3(22-x ) 65. 1.5 x =28.5 66.

(0.5+ x )+ x=9.8÷2

15725

14913

2

515441316112175211014556733

7

85761494

3

67. x ﹣2=40 68. 7×(2 x -6)=84 69. 8 x =42 70. x ÷×= 71. x ÷5 = 72. ÷x =

73. 74. 75. 1.5 x +6=3 x

76. x -= 77.

78. 35 x + 2.5×8=95 79. 5×3-x÷2=8 80. 2017-x =43

81. 6585⨯⨯x =150 82. 7441⨯⨯x =21 83. 8521⨯⨯x =32

5

5

3

7614943

3

13153762011441153=+x 26

77

x x +=855352525235

()

81

51236x x ⨯++=

84. 726⨯x =143 85. x -418⨯=83 86. 2110⨯x =14

5

87. 435⨯x =87 88. 127÷x =5

2

89. x ⎪⎭⎫

⎝⎛-531=15

1 90. 21543-x =211 91. 2

1

621121=+x 92. 5.25%15=-x

93. 2041=+x x 94. 122

1

46=-⨯x 95. 3.3%10=+x x

96.50431%24=+x 97. 6

1

%7552=+x x 98. 5.7%15018=-x

99. x – 60% x =18 100. 40% x +30=80

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