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Mental subtraction of 2-digit numbers (SET 2)

Bruce Akitt Mathematics Grade 12 Inglés 72 fichas

Fichas del conjunto (72)

  1. 1To do : 41 - 36 = ___ Think: 36 + ___ = 4136 + _5_ = 41
  2. 2To do : 35 - 30 = ___ Think: 30 + ___ = 3530 + _5_ = 35
  3. 3To do : 29 - 24 = ___ Think: 24 + ___ = 2924 + _5_ = 29
  4. 4To do : 33 - 18 = ___ Think: 18 + ___ = 3318 + _5_ = 33
  5. 5To do : 17 - 12 = ___ Think: 12 + ___ = 1712 + _5_ = 17
  6. 6To do : 53 - 49 = ___ Think: 49 + ___ = 5349 + _5_ = 53
  7. 7To do : 54 - 49 = ___ Think: 49 + ___ = 5449 + _5_ = 54
  8. 8To do : 47 - 42 = ___ Think: 42 + ___ = 4742 + _5_ = 47
  9. 9To do : 48 - 42 = ___ Think: 42 + ___ = 4842 + _6_ = 48
  10. 10To do : 40 - 35 = ___ Think: 35 + ___ = 4035 + _5_ = 40
  11. 11To do : 40 - 35 = ___ Think: 35 + ___ = 4035 + _5_ = 40
  12. 12To do : 41 - 35 = ___ Think: 35 + ___ = 4135 + _6_ = 41
  13. 13To do : 33 - 28 = ___ Think: 28 + ___ = 3328 + _5_ = 33
  14. 14To do : 34 - 28 = ___ Think: 28 + ___ = 3428 + _6_ = 34
  15. 15To do : 26 - 21 = ___ Think: 21 + ___ = 2621 + _5_ = 26
  16. 16To do : 27 - 21 = ___ Think: 21 + ___ = 2721 + _6_ = 27
  17. 17To do : 19 - 14 = ___ Think: 14 + ___ = 1914 + _5_ = 19
  18. 18To do : 20 - 14 = ___ Think: 14 + ___ = 2014 + _6_ = 20
  19. 19To do : 69 - 64 = ___ Think: 64 + ___ = 6964 + _5_ = 69
  20. 20To do : 70 - 64 = ___ Think: 64 + ___ = 7064 + _6_ = 70
  21. 21To do : 71 - 64 = ___ Think: 64 + ___ = 7164 + _7_ = 71
  22. 22To do : 61 - 56 = ___ Think: 56 + ___ = 6156 + _5_ = 61
  23. 23To do : 62 - 56 = ___ Think: 56 + ___ = 6256 + +6_ = 62
  24. 24To do : 63 - 56 = ___ Think: 56 + ___ = 6356 + _7_ = 63
  25. 25To do : 53 - 48 = ___ Think: 48 + ___ = 5348 + _5_ = 53
  26. 26To do : 54 - 48 = ___ Think: 48 + ___ = 5448 + _6_ = 54
  27. 27To do : 55 - 48 = ___ Think: 48 + ___ = 5548 + _7_ = 55
  28. 28To do : 45 - 40 = ___ Think: 40 + ___ = 4540 + _5_ = 45
  29. 29To do : 46 - 40 = ___ Think: 40 + ___ = 4640 + _6_ = 46
  30. 30To do : 47 - 40 = ___ Think: 40 + ___ = 4740 + _7_ = 47
  31. 31To do : 37 - 32 = ___ Think: 32 + ___ = 3732 + _5_ = 37
  32. 32To do : 38 - 32 = ___ Think: 32 + ___ = 3832 + _6_ = 38
  33. 33To do : 39 - 32 = ___ Think: 32 + ___ = 3932 + _7_ = 39
  34. 34To do : 29 - 24 = ___ Think: 24 + ___ = 2924 + _5_ = 29
  35. 35To do : 30 - 24 = ___ Think: 24 + ___ = 3024 + _6_ = 30
  36. 36To do : 30 - 24 = ___ Think: 24 + ___ = 3024 + _6_ = 30
  37. 37To do : 31 - 24 = ___ Think: 24 + ___ = 3124 + _7_ = 31
  38. 38To do : 21 - 16 = ___ Think: 16 + ___ = 2116 + _5_ = 21
  39. 39To do : 22 - 16 = ___ Think: 16 + ___ = 2216 + _6_ = 22
  40. 40To do : 23 - 16 = ___ Think: 16 + ___ = 2316 + _7_ = 23
  41. 41To do : 86 - 81 = ___ Think: 81 + ___ = 8681 + 5 = 86
  42. 42To do : 87 - 81 = ___ Think: 81 + ___ = 8781 + _6_ = 87
  43. 43To do : 88 - 81 = ___ Think: 81 + ___ = 8881 + _7_ = 88
  44. 44To do : 89 - 81 = ___ Think: 81 + ___ = 8981 + 8 = 89
  45. 45To do : 77 - 72 = ___ Think: 72 + ___ = 7772 + _5_ = 77
  46. 46To do : 78 - 72 = ___ Think: 72 + ___ = 7872 + _6_ =78
  47. 47To do : 79 - 72 = ___ Think: 72 + ___ = 7972 + _7_ = 79
  48. 48To do : 80 - 72 = ___ Think: 72 + ___ =8072 + _8_ = 80
  49. 49To do : 68 - 63 = ___ Think: 63 + ___ = 6863 + _ 5_ = 68
  50. 50To do : 69 - 63 = ___ Think: 63 + ___ = 6963 + _6_ = 69
  51. 51To do : 70 - 63 = ___ Think: 63 + ___ = 7063 + _7_ = 70
  52. 52To do : 71 - 63 = ___ Think: 63 + ___ = 7163 + _8_ = 71
  53. 53To do : 59 - 54 = ___ Think: 54 + ___ = 5954 + _5_ = 59
  54. 54To do : 60 - 54 = ___ Think: 54 + ___ = 6054 + _6_ = 60
  55. 55To do : 61 - 54 = ___ Think: 54 + ___ = 6154 + _7_ = 61
  56. 56To do : 62 - 54 = ___ Think: 54 + ___ = 6254 + _8_ = 62
  57. 57To do : 50 - 45 = ___ Think: 45 + ___ = 5045 + _5_ = 50
  58. 58To do : 51 - 45 = ___ Think: 45 + ___ = 5145 + _6_ = 51
  59. 59To do : 52 - 45 = ___ Think: 45 + ___ = 5245 + _7_ = 52
  60. 60To do : 53 - 45 = ___ Think: 45 + ___ = 5345 + _8_ = 53
  61. 61To do : 41 - 36 = ___ Think: 36 + ___ = 41+ _5_ = 41
  62. 62To do : 42 - 36 = ___ Think: 36 + ___ = 4236 + _6_ = 42
  63. 63To do : 43 - 36 = ___ Think: 36 + ___ = 4336 + _7_ = 43
  64. 64To do : 44 - 36 = ___ Think: 36 + ___ = 4436 + _8_ = 44
  65. 65To do : 32 - 27 = ___ Think: 27 + ___ = 3227 + _5_ = 32
  66. 66To do : 33 - 27 = ___ Think: 27 + ___ = 3327 + _6_ = 33
  67. 67To do : 34 - 27 = ___ Think: 27 + ___ = 3427 + _7_ = 34
  68. 68To do : 35 - 27 = ___ Think: 27 + ___ = 3527 + _8_ = 35
  69. 69To do : 23 - 18 = ___ Think: 18 + ___ = 2318 + _5_ = 23
  70. 70To do : 24 - 18 = ___ Think: 18 + ___ = 2418 + _6_ = 24
  71. 71To do : 25 - 18 = ___ Think: 18 + ___ = 2518 + _7_ = 25
  72. 72To do : 26 - 18 = ___ Think: 18 + ___ = 2618 + +8_ = 26

Información

Descripción
When dividing by a single digit number, finding the remainder often requires subtraction of two 2-digit numbers whose difference will be a number less than 10. This is best done by using addition with the remainder being the one digit number that you would add to the quotient to make the dividend. These flashcards practice this mental calculation, where the difference is between 5 and 8..
Creado por
Bruce Akitt
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