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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 208 · 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 64 =
  2. 2.Half of 72 =
  3. 3.Half of 46 =
  4. 4.Double 91 =
  5. 5.Double 57 =
  6. 6.Half of 164 =
  7. 7.Double 72 =
  8. 8.Half of 146 =
  9. 9.Half of 16 =
  10. 10.Double 23 =
  11. 11.Double 61 =
  12. 12.Double 98 =
  13. 13.Double 16 =
  14. 14.Double 68 =
  15. 15.Double 31 =
  16. 16.Double 81 =
  17. 17.Double 82 =
  18. 18.Half of 82 =
  19. 19.Double 75 =
  20. 20.Double 41 =
  21. 21.Half of 172 =
  22. 22.Double 52 =
  23. 23.Half of 88 =
  24. 24.Double 73 =
  25. 25.Half of 192 =
  26. 26.Half of 126 =
  27. 27.Double 64 =
  28. 28.Double 54 =
  29. 29.Double 39 =
  30. 30.Half of 118 =
  31. 31.Double 14 =
  32. 32.Double 37 =
  33. 33.Double 44 =
  34. 34.Double 13 =
  35. 35.Half of 44 =
  36. 36.Double 97 =
  37. 37.Double 46 =
  38. 38.Double 63 =
  39. 39.Half of 26 =
  40. 40.Half of 186 =

Answer key

  1. 32
  2. 36
  3. 23
  4. 182
  5. 114
  6. 82
  7. 144
  8. 73
  9. 8
  10. 46
  11. 122
  12. 196
  13. 32
  14. 136
  15. 62
  16. 162
  17. 164
  18. 41
  19. 150
  20. 82
  21. 86
  22. 104
  23. 44
  24. 146
  25. 96
  26. 63
  27. 128
  28. 108
  29. 78
  30. 59
  31. 28
  32. 74
  33. 88
  34. 26
  35. 22
  36. 194
  37. 92
  38. 126
  39. 13
  40. 93

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