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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 303 · 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 82 =
  2. 2.Half of 164 =
  3. 3.Half of 154 =
  4. 4.Half of 46 =
  5. 5.Double 74 =
  6. 6.Double 71 =
  7. 7.Double 81 =
  8. 8.Double 83 =
  9. 9.Double 41 =
  10. 10.Double 44 =
  11. 11.Half of 72 =
  12. 12.Double 29 =
  13. 13.Double 12 =
  14. 14.Double 99 =
  15. 15.Double 36 =
  16. 16.Half of 194 =
  17. 17.Half of 152 =
  18. 18.Half of 22 =
  19. 19.Half of 132 =
  20. 20.Double 72 =
  21. 21.Double 66 =
  22. 22.Double 24 =
  23. 23.Half of 162 =
  24. 24.Double 38 =
  25. 25.Half of 148 =
  26. 26.Double 13 =
  27. 27.Half of 102 =
  28. 28.Double 94 =
  29. 29.Double 91 =
  30. 30.Half of 106 =
  31. 31.Half of 48 =
  32. 32.Double 11 =
  33. 33.Double 34 =
  34. 34.Double 25 =
  35. 35.Double 27 =
  36. 36.Double 76 =
  37. 37.Double 75 =
  38. 38.Half of 26 =
  39. 39.Half of 28 =
  40. 40.Half of 32 =

Answer key

  1. 41
  2. 82
  3. 77
  4. 23
  5. 148
  6. 142
  7. 162
  8. 166
  9. 82
  10. 88
  11. 36
  12. 58
  13. 24
  14. 198
  15. 72
  16. 97
  17. 76
  18. 11
  19. 66
  20. 144
  21. 132
  22. 48
  23. 81
  24. 76
  25. 74
  26. 26
  27. 51
  28. 188
  29. 182
  30. 53
  31. 24
  32. 22
  33. 68
  34. 50
  35. 54
  36. 152
  37. 150
  38. 13
  39. 14
  40. 16

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