混合運算對于三年級學生來說是一項重要的數(shù)學技能。通過練習混合運算，孩子們能夠更好地掌握加減乘除的運用，提高計算能力。下面是一些混合運算題目，供學生們練習。1. 12 + 34 - 15 + 8 = ?2. 25 × 4 ÷ 5 + 7 = ?3. (15 + 20) ÷ 5 - 2 = ?4. 45 - 12 × 3 + 9 = ?5. 63 ÷ 7 + 10 - 4 = ?6. (20 - 5) × 3 + 8 = ?7. 30 + 15 ÷ 5 - 2 × 3 = ?8. 18 - 4 × (3 + 2) = ?9. 24 ÷ 4 + 12 - 5 = ?10. (10 + 5) × 2 - 12 = ?11. 45 - 18 ÷ 3 + 7 = ?12. 27 + 15 ÷ 5 - 3 × 2 = ?13. 32 ÷ 8 + 10 - 4 = ?14. (15 + 10) ÷ 5 + 3 = ?15. 48 - 16 × 2 + 9 = ?16. (20 - 5) × 3 + 8 = ?17. 40 + 15 ÷ 5 - 2 × 4 = ?18. 12 - 3 × (2 + 1) = ?19. 25 ÷ 5 + 10 - 3 = ?20. (10 + 5) × 2 - 12 = ?21. 54 - 18 ÷ 3 + 6 = ?22. 32 + 15 ÷ 5 - 3 × 3 = ?23. 36 ÷ 9 + 10 - 2 = ?24. (20 + 10) ÷ 5 + 2 = ?25. 40 - 16 × 2 + 8 = ?26. (25 - 5) × 3 + 10 = ?27. 35 + 20 ÷ 5 - 3 × 3 = ?28. 14 - 2 × (3 + 1) = ?29. 30 ÷ 5 + 10 - 4 = ?30. (15 + 5) × 2 - 10 = ?31. 56 - 14 ÷ 2 + 7 = ?32. 30 + 15 ÷ 5 - 3 × 3 = ?33. 36 ÷ 9 + 10 - 3 = ?34. (25 + 10) ÷ 5 + 2 = ?35. 40 - 16 × 2 + 7 = ?36. (20 - 5) × 3 + 8 = ?37. 45 + 20 ÷ 5 - 3 × 3 = ?38. 16 - 2 × (3 + 1) = ?39. 30 ÷ 5 + 10 - 5 = ?40. (15 + 5) × 2 - 12 = ?41. 54 - 18 ÷ 3 + 5 = ?42. 32 + 15 ÷ 5 - 3 × 2 = ?43. 36 ÷ 9 + 10 - 4 = ?44. (20 + 10) ÷ 5 + 2 = ?45. 40 - 16 × 2 + 9 = ?46. (25 - 5) × 3 + 7 = ?47. 35 + 20 ÷ 5 - 3 × 2 = ?48. 14 - 2 × (3 + 1) = ?49. 30 ÷ 5 + 10 - 6 = ?50. (15 + 5) × 2 - 10 = ?51. 56 - 14 ÷ 2 + 6 = ?52. 30 + 15 ÷ 5 - 3 × 3 = ?53. 36 ÷ 9 + 10 - 5 = ?54. (25 + 10) ÷ 5 + 2 = ?55. 40 - 16 × 2 + 8 = ?56. (20 - 5) × 3 + 10 = ?57. 45 + 20 ÷ 5 - 3 × 2 = ?58. 16 - 2 × (3 + 1) = ?59. 30 ÷ 5 + 10 - 7 = ?60. (15 + 5) × 2 - 12 = ?61. 54 - 18 ÷ 3 + 4 = ?62. 32 + 15 ÷ 5 - 3 × 3 = ?63. 36 ÷ 9 + 10 - 6 = ?64. (20 + 10) ÷ 5 + 2 = ?65. 40 - 16 × 2 + 7 = ?66. (25 - 5) × 3 + 8 = ?67. 35 + 20 ÷ 5 - 3 × 3 = ?68. 14 - 2 × (3 + 1) = ?69. 30 ÷ 5 + 10 - 8 = ?70. (15 + 5) × 2 - 10 = ?71. 56 - 14 ÷ 2 + 5 = ?72. 30 + 15 ÷ 5 - 3 × 3 = ?73. 36 ÷ 9 + 10 - 7 = ?74. (25 + 10) ÷ 5 + 2 = ?75. 40 - 16 × 2 + 6 = ?76. (20 - 5) × 3 + 10 = ?77. 45 + 20 ÷ 5 - 3 × 2 = ?78. 16 - 2 × (3 + 1) = ?79. 30 ÷ 5 + 10 - 9 = ?80. (15 + 5) × 2 - 12 = ?81. 54 - 18 ÷ 3 + 3 = ?82. 32 + 15 ÷ 5 - 3 × 3 = ?83. 36 ÷ 9 + 10 - 8 = ?84. (20 + 10) ÷ 5 + 2 = ?85. 40 - 16 × 2 + 5 = ?86. (25 - 5) × 3 + 8 = ?87. 35 + 20 ÷ 5 - 3 × 3 = ?88. 14 - 2 × (3 + 1) = ?89. 30 ÷ 5 + 10 - 10 = ?90. (15 + 5) × 2 - 10 = ?91. 56 - 14 ÷ 2 + 4 = ?92. 30 + 15 ÷ 5 - 3 × 3 = ?93. 36 ÷ 9 + 10 - 9 = ?94. (25 + 10) ÷ 5 + 2 = ?95. 40 - 16 × 2 + 4 = ?96. (20 - 5) × 3 + 10 = ?97. 45 + 20 ÷ 5 - 3 × 2 = ?98. 16 - 2 × (3 + 1) = ?99. 30 ÷ 5 + 10 - 11 = ?100. (15 + 5) × 2 - 12 = ?101. 54 - 18 ÷ 3 + 2 = ?102. 32 + 15 ÷ 5 - 3 × 3 = ?103. 36 ÷ 9 + 10 - 10 = ?104. (20 + 10) ÷ 5 + 2 = ?105. 40 - 16 × 2 + 3 = ?106. (25 - 5) × 3 + 8 = ?107. 35 + 20 ÷ 5 - 3 × 3 = ?108. 14 - 2 × (3 + 1) = ?109. 30 ÷ 5 + 10 - 12 = ?110. (15 + 5) × 2 - 10 = ?111. 56 - 14 ÷ 2 + 3 = ?112. 30 + 15 ÷ 5 - 3 × 3 = ?113. 36 ÷ 9 + 10 - 11 = ?114. (25 + 10) ÷ 5 + 2 = ?115. 40 - 16 × 2 + 2 = ?116. (20 - 5) × 3 + 10 = ?117. 45 + 20 ÷ 5 - 3 × 2 = ?118. 16 - 2 × (3 + 1) = ?119. 30 ÷ 5 + 10 - 13 = ?120. (15 + 5) × 2 - 12 = ?121. 54 - 18 ÷ 3 + 1 = ?122. 32 + 15 ÷ 5 - 3 × 3 = ?123. 36 ÷ 9 + 10 - 12 = ?124. (20 + 10) ÷ 5 + 2 = ?125. 40 - 16 × 2 + 1 = ?