| 50以内减法口算 | |||||||||||||||||||
| 1. | 20 | － | 2 | = | 26. | 4 | － | 3 | = | 51. | 36 | － | 11 | = | 76. | 8 | － | 3 | = |
| 2. | 4 | － | 3 | = | 27. | 44 | － | 26 | = | 52. | 40 | － | 18 | = | 77. | 44 | － | 34 | = |
| 3. | 21 | － | 5 | = | 28. | 24 | － | 15 | = | 53. | 30 | － | 4 | = | 78. | 42 | － | 28 | = |
| 4. | 20 | － | 19 | = | 29. | 2 | － | 2 | = | 54. | 36 | － | 14 | = | 79. | 20 | － | 8 | = |
| 5. | 7 | － | 6 | = | 30. | 4 | － | 1 | = | 55. | 19 | － | 7 | = | 80. | 30 | － | 25 | = |
| 6. | 14 | － | 7 | = | 31. | 16 | － | 14 | = | 56. | 18 | － | 7 | = | 81. | 32 | － | 18 | = |
| 7. | 36 | － | 8 | = | 32. | 13 | － | 6 | = | 57. | 20 | － | 3 | = | 82. | 21 | － | 7 | = |
| 8. | 30 | － | 28 | = | 33. | 30 | － | 9 | = | 58. | 26 | － | 3 | = | 83. | 24 | － | 11 | = |
| 9. | 42 | － | 39 | = | 34. | 5 | － | 4 | = | 59. | 3 | － | 2 | = | 84. | 35 | － | 15 | = |
| 10. | 34 | － | 27 | = | 35. | 36 | － | 12 | = | 60. | 43 | － | 26 | = | 85. | 41 | － | 24 | = |
| 11. | 6 | － | 4 | = | 36. | 20 | － | 14 | = | 61. | 18 | － | 18 | = | 86. | 42 | － | 42 | = |
| 12. | 13 | － | 8 | = | 37. | 4 | － | 2 | = | 62. | 15 | － | 6 | = | 87. | 44 | － | 13 | = |
| 13. | 29 | － | 16 | = | 38. | 24 | － | 7 | = | 63. | 15 | － | 1 | = | 88. | 10 | － | 5 | = |
| 14. | 32 | － | 14 | = | 39. | 24 | － | 15 | = | 64. | 26 | － | 15 | = | 89. | 11 | － | 2 | = |
| 15. | 20 | － | 5 | = | 40. | 43 | － | 9 | = | 65. | 8 | － | 3 | = | 90. | 12 | － | 2 | = |
| 16. | 4 | － | 1 | = | 41. | 17 | － | 6 | = | 66. | 14 | － | 1 | = | 91. | 32 | － | 2 | = |
| 17. | 35 | － | 23 | = | 42. | 16 | － | 15 | = | 67. | 19 | － | 3 | = | 92. | 45 | － | 21 | = |
| 18. | 2 | － | 1 | = | 43. | 46 | － | 1 | = | 68. | 18 | － | 8 | = | 93. | 13 | － | 5 | = |
| 19. | 26 | － | 11 | = | 44. | 27 | － | 14 | = | 69. | 22 | － | 15 | = | 94. | 44 | － | 9 | = |
| 20. | 10 | － | 2 | = | 45. | 43 | － | 22 | = | 70. | 44 | － | 9 | = | 95. | 39 | － | 13 | = |
| 21. | 37 | － | 26 | = | 46. | 33 | － | 1 | = | 71. | 25 | － | 13 | = | 96. | 13 | － | 3 | = |
| 22. | 40 | － | 21 | = | 47. | 41 | － | 24 | = | 72. | 45 | － | 45 | = | 97. | 15 | － | 8 | = |
| 23. | 19 | － | 1 | = | 48. | 32 | － | 25 | = | 73. | 43 | － | 10 | = | 98. | 26 | － | 23 | = |
| 24. | 21 | － | 15 | = | 49. | 50 | － | 19 | = | 74. | 38 | － | 24 | = | 99. | 10 | － | 5 | = |
| 25. | 29 | － | 11 | = | 50. | 11 | － | 5 | = | 75. | 3 | － | 2 | = | 100. | 5 | － | 2 | = |
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