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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 595 · 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 124 =
  2. 2.Double 52 =
  3. 3.Half of 22 =
  4. 4.Double 28 =
  5. 5.Half of 136 =
  6. 6.Double 91 =
  7. 7.Half of 166 =
  8. 8.Half of 74 =
  9. 9.Double 31 =
  10. 10.Double 39 =
  11. 11.Double 67 =
  12. 12.Double 11 =
  13. 13.Half of 112 =
  14. 14.Half of 128 =
  15. 15.Double 34 =
  16. 16.Double 42 =
  17. 17.Half of 38 =
  18. 18.Double 76 =
  19. 19.Half of 162 =
  20. 20.Double 25 =
  21. 21.Double 26 =
  22. 22.Double 71 =
  23. 23.Double 85 =
  24. 24.Double 66 =
  25. 25.Double 37 =
  26. 26.Double 75 =
  27. 27.Half of 172 =
  28. 28.Half of 52 =
  29. 29.Double 46 =
  30. 30.Double 58 =
  31. 31.Half of 104 =
  32. 32.Double 83 =
  33. 33.Double 41 =
  34. 34.Double 86 =
  35. 35.Half of 182 =
  36. 36.Half of 152 =
  37. 37.Double 29 =
  38. 38.Double 97 =
  39. 39.Double 62 =
  40. 40.Double 68 =

Answer key

  1. 62
  2. 104
  3. 11
  4. 56
  5. 68
  6. 182
  7. 83
  8. 37
  9. 62
  10. 78
  11. 134
  12. 22
  13. 56
  14. 64
  15. 68
  16. 84
  17. 19
  18. 152
  19. 81
  20. 50
  21. 52
  22. 142
  23. 170
  24. 132
  25. 74
  26. 150
  27. 86
  28. 26
  29. 92
  30. 116
  31. 52
  32. 166
  33. 82
  34. 172
  35. 91
  36. 76
  37. 58
  38. 194
  39. 124
  40. 136

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