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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 68 · 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 192 =
  2. 2.Double 13 =
  3. 3.Half of 34 =
  4. 4.Half of 32 =
  5. 5.Half of 124 =
  6. 6.Half of 116 =
  7. 7.Half of 134 =
  8. 8.Half of 94 =
  9. 9.Double 62 =
  10. 10.Double 29 =
  11. 11.Double 33 =
  12. 12.Half of 76 =
  13. 13.Half of 88 =
  14. 14.Half of 106 =
  15. 15.Half of 168 =
  16. 16.Half of 42 =
  17. 17.Double 47 =
  18. 18.Double 84 =
  19. 19.Double 21 =
  20. 20.Half of 24 =
  21. 21.Half of 64 =
  22. 22.Double 51 =
  23. 23.Half of 128 =
  24. 24.Double 41 =
  25. 25.Double 93 =
  26. 26.Double 77 =
  27. 27.Half of 54 =
  28. 28.Half of 82 =
  29. 29.Half of 52 =
  30. 30.Half of 146 =
  31. 31.Half of 62 =
  32. 32.Double 85 =
  33. 33.Double 35 =
  34. 34.Half of 132 =
  35. 35.Double 58 =
  36. 36.Double 43 =
  37. 37.Half of 118 =
  38. 38.Half of 102 =
  39. 39.Double 46 =
  40. 40.Double 48 =

Answer key

  1. 96
  2. 26
  3. 17
  4. 16
  5. 62
  6. 58
  7. 67
  8. 47
  9. 124
  10. 58
  11. 66
  12. 38
  13. 44
  14. 53
  15. 84
  16. 21
  17. 94
  18. 168
  19. 42
  20. 12
  21. 32
  22. 102
  23. 64
  24. 82
  25. 186
  26. 154
  27. 27
  28. 41
  29. 26
  30. 73
  31. 31
  32. 170
  33. 70
  34. 66
  35. 116
  36. 86
  37. 59
  38. 51
  39. 92
  40. 96

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