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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 659 · 40 questions
TalentJR

The trick (Split and double): Split the number into tens and ones: 37 = 30 + 7. Double each part (30 → 60, 7 → 14) — or halve each part. Add the two answers: 60 + 14 = 74.

NameDateTime takenScore ___ / 40
  1. 1.Half of 16 =
  2. 2.Half of 116 =
  3. 3.Double 67 =
  4. 4.Half of 52 =
  5. 5.Half of 34 =
  6. 6.Double 62 =
  7. 7.Half of 42 =
  8. 8.Double 72 =
  9. 9.Double 25 =
  10. 10.Double 87 =
  11. 11.Half of 138 =
  12. 12.Half of 32 =
  13. 13.Double 76 =
  14. 14.Double 82 =
  15. 15.Half of 156 =
  16. 16.Double 57 =
  17. 17.Double 13 =
  18. 18.Double 23 =
  19. 19.Double 93 =
  20. 20.Double 61 =
  21. 21.Half of 108 =
  22. 22.Double 97 =
  23. 23.Double 39 =
  24. 24.Double 66 =
  25. 25.Double 51 =
  26. 26.Double 43 =
  27. 27.Half of 72 =
  28. 28.Half of 92 =
  29. 29.Double 77 =
  30. 30.Half of 94 =
  31. 31.Double 95 =
  32. 32.Double 42 =
  33. 33.Double 18 =
  34. 34.Half of 196 =
  35. 35.Double 49 =
  36. 36.Half of 188 =
  37. 37.Double 14 =
  38. 38.Double 56 =
  39. 39.Half of 106 =
  40. 40.Double 89 =

Answer key

  1. 8
  2. 58
  3. 134
  4. 26
  5. 17
  6. 124
  7. 21
  8. 144
  9. 50
  10. 174
  11. 69
  12. 16
  13. 152
  14. 164
  15. 78
  16. 114
  17. 26
  18. 46
  19. 186
  20. 122
  21. 54
  22. 194
  23. 78
  24. 132
  25. 102
  26. 86
  27. 36
  28. 46
  29. 154
  30. 47
  31. 190
  32. 84
  33. 36
  34. 98
  35. 98
  36. 94
  37. 28
  38. 112
  39. 53
  40. 178

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