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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 373 · 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 12 =
  2. 2.Half of 92 =
  3. 3.Double 53 =
  4. 4.Half of 56 =
  5. 5.Double 34 =
  6. 6.Double 71 =
  7. 7.Double 35 =
  8. 8.Double 87 =
  9. 9.Double 47 =
  10. 10.Double 93 =
  11. 11.Half of 144 =
  12. 12.Half of 32 =
  13. 13.Double 49 =
  14. 14.Half of 116 =
  15. 15.Double 16 =
  16. 16.Double 91 =
  17. 17.Double 75 =
  18. 18.Double 68 =
  19. 19.Double 77 =
  20. 20.Half of 24 =
  21. 21.Half of 122 =
  22. 22.Half of 72 =
  23. 23.Half of 184 =
  24. 24.Half of 64 =
  25. 25.Half of 38 =
  26. 26.Double 31 =
  27. 27.Half of 62 =
  28. 28.Double 73 =
  29. 29.Half of 156 =
  30. 30.Double 44 =
  31. 31.Half of 152 =
  32. 32.Half of 112 =
  33. 33.Double 86 =
  34. 34.Double 51 =
  35. 35.Double 22 =
  36. 36.Double 81 =
  37. 37.Double 38 =
  38. 38.Double 89 =
  39. 39.Double 72 =
  40. 40.Half of 26 =

Answer key

  1. 6
  2. 46
  3. 106
  4. 28
  5. 68
  6. 142
  7. 70
  8. 174
  9. 94
  10. 186
  11. 72
  12. 16
  13. 98
  14. 58
  15. 32
  16. 182
  17. 150
  18. 136
  19. 154
  20. 12
  21. 61
  22. 36
  23. 92
  24. 32
  25. 19
  26. 62
  27. 31
  28. 146
  29. 78
  30. 88
  31. 76
  32. 56
  33. 172
  34. 102
  35. 44
  36. 162
  37. 76
  38. 178
  39. 144
  40. 13

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