24. 12.5×8.88
25. 27.5×3.7-7.5×3.7 26. 2.3×16+2.3×23+2.3 27. 3.65×10.1
28. 9.7×99＋9.7
29. 3.9×2.7＋0.39×73 30. 5.6÷1.25÷0.8÷2.5÷0.4 31. 67.22×7.6÷6.722 32. 2.4×1.02
33. 4.33÷(43.3×2.5) 34. 0.125×1.6 35. 6.7×0.99
36. 3.2×0.25×12.5 37. 1.25×0.79
38. 10.7×16.1-15.1×10.7 39. 24.8×6.5+24.8×4.5-24.8 40. 0.89×100.1 41. 5.4×11-5.4 42. 12.5×8.1
43. 101×0.87-0.91×87 44. 3.52÷2.5÷0.4 45. 45.8×2.7÷4.58 46. 87.5÷(8.75×5) 47. 12.5×0.72 48. 0.25×0.73×4
49. 9.16×1.5-0.5×9.16
50. 2.76×65＋2.76＋2.76×34 51. 8.9×1.01
52. 4.56+99×4.56 53. 5.24×101
54. 3.65×4.7-36.5×0.37 55. 320÷1.25÷8
56. 0.756×34.8÷7.56 57. 5.6÷(0.56÷5.4) 58. 0.25×4.8
59. 67.3×101-67.3 60. 12.5×16.2×80
61. 3.72×3.5＋6.28×3.5 62. 6.3×99+6.3
63. 2.55×1.5+1.5+6.45×1.5 64. 0.65×9.9 65. 4.72×21-4.72
66. 3.24×8＋32.4＋820×0.324 67. 18-1.8÷0.125÷0.8
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68. 0.25×44.4
69. 67.3×32.6÷673 70. 73.2÷(0.732÷3.55) 71. 2.5×0.28
72. 12.5×0.96×0.8
73. 7.09×10.8-0.8×7.09 74. 56.5×101-56.5 75. 45.6×101
76. 3.5×0.7+5.5×0.7+0.7 77. 4.65×17＋46.5×7.3＋0.465 78. 5.63×10.1 79. 63.4÷2.5÷0.4 80. 60.8÷(6.08÷9.3) 81. 3.6×0.25
82. 0.8×(4.3×1.25)
83. 3.83×4.56＋3.83×5.44 84. 0.79×199 85. 48.9×101-48.9
86. 27.8×3.6＋2.78×64 87. 15.2÷0.25÷4 88. 34.8×101 89. 0.04×4.65×25
90. 0.86×15.7-0.86×14.7 91. 0.32×403
92. 3.14×101-3.14 93. 32.4×0.9＋0.01×324 94. 5.89×101-5.89
95. 154×1.63-15.4-1.54×53 96. 0.35×1.25×2×0.8 97. 3.65×4.7-36.5×0.37 98. 7.6×0.8＋0.2×7.6 99. 4.8×100.1
100. 67.3×99+67.3
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四、解方程(一天4题) 1.
1. x+8.3=10.7 2. x-5.7=2.15
3. 6x-12.8×3=0.06 4. 3(x+2.1)=10.5 5. 0.07x=2.1 6. 3x+6=18
7. 24÷2+34x=56 8. 13(x+5)=169 9. 7x-24÷2=2 10. 4.6÷x=23 11. 2(2.8+x)=10.4 12. 4.6-x=2.4 13. 18(x-2)=270 14. 6x-3x=18 15. x÷3.5=2.4 16. 8.6-2.1-4x=0.5 17. (5-2x) ÷2.5=0.4 18. 15.5x-2x=18 19. x+2.4×2=9.4 20. (x-3)÷2=7.5 21. x-4.5×2=11 22. 3.6x=0.7+0.38 23. 1.8 +6x=54 24. 12-4x=0.8×6.2 25. (27.5-3.5)÷x=4 26. 5x+15=1.2×50 27. 3x-8=2×0.8 28. 3.2÷x=0.4×2 29. 14.8-x=3.6÷2 30. x÷14=0.5
31. 0.1(x+6)=3.3×0.4 32. x+2x+18=78 33. x+19.8÷9=25.8 34. 45.8-7x=11.4-11.1 35. x-3.6÷2=4.8-1.2 36. 2.1x=2.31 37. 6.08-0.2x=4 38. 4.8×1.5-2x=1.2 39. (19-5x) ÷5=0.8×3 40. 9+3x=31-4
41. 1.5(x+1.6)=3.6 42. 24.5÷5-5x=3.6
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43. 2x-97=17.1×2 44. 4.5÷x=1.2 45. 11.2-5.6-x=2.3 46. x÷23=12.1-0.6 47. (200-x)÷5=30 48. 26×1.5= 2x+10 49. x+4.8=7.2 50. x-6.8=12.09 51. 0.9x=0.27×3 52. 2(x-3)=5.8 53. 7x+5.3=7.4 54. 12x-9x=8.7 55. 2x-5.6×1.5=4 56. 36÷x=0.09 57. x÷2.5=3.4+2.2 58. x÷0.17=4.9-2.4 59. 4.6×5-x=2.5×4 60. (x-140)÷70=4 61. 3200=450+5x+x 62. 1.02÷0.3+x=6.8 63. x-7.2×5=6 64. 1.2x=2.44-1 65. 16×0.5+7x=15 66. 9x-40=5
67. 19.2÷x=14.4-2.4 68. x÷4.5=24-12 69. 15.6÷2-x=0.88 70. 2(x+x+0.5)=9.8 71. 9x-x=16
72. 5.56+x=7.91-1.01 73. x-10.5=3.8×2 74. 2.5x=2.75 75. 2x+8=16 76. 3.6x-1.4×2=4.4 77. 8.5÷x=0.5+1.2 78. 6.8-x=4.7
79. (2x+4.5) ÷0.6=0.5+1 80. 22-14x=12 81. 3(x+0.5)=21 82. 1.1x-x=12-4.5 83. 12.5×6+x=80 84. x-18.8=6.9 85. 0.13x=16.9 86. 4+5x=9
8 / 12
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