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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 26 · 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.Double 51 =
  2. 2.Half of 12 =
  3. 3.Half of 32 =
  4. 4.Double 81 =
  5. 5.Double 63 =
  6. 6.Half of 82 =
  7. 7.Half of 188 =
  8. 8.Double 29 =
  9. 9.Half of 104 =
  10. 10.Half of 168 =
  11. 11.Half of 118 =
  12. 12.Double 86 =
  13. 13.Double 98 =
  14. 14.Half of 76 =
  15. 15.Double 66 =
  16. 16.Double 26 =
  17. 17.Half of 66 =
  18. 18.Double 39 =
  19. 19.Half of 62 =
  20. 20.Half of 174 =
  21. 21.Half of 198 =
  22. 22.Double 95 =
  23. 23.Half of 42 =
  24. 24.Double 17 =
  25. 25.Half of 98 =
  26. 26.Half of 46 =
  27. 27.Half of 102 =
  28. 28.Half of 112 =
  29. 29.Half of 52 =
  30. 30.Double 88 =
  31. 31.Double 27 =
  32. 32.Double 64 =
  33. 33.Half of 106 =
  34. 34.Double 21 =
  35. 35.Half of 114 =
  36. 36.Half of 58 =
  37. 37.Half of 162 =
  38. 38.Double 11 =
  39. 39.Double 37 =
  40. 40.Double 67 =

Answer key

  1. 102
  2. 6
  3. 16
  4. 162
  5. 126
  6. 41
  7. 94
  8. 58
  9. 52
  10. 84
  11. 59
  12. 172
  13. 196
  14. 38
  15. 132
  16. 52
  17. 33
  18. 78
  19. 31
  20. 87
  21. 99
  22. 190
  23. 21
  24. 34
  25. 49
  26. 23
  27. 51
  28. 56
  29. 26
  30. 176
  31. 54
  32. 128
  33. 53
  34. 42
  35. 57
  36. 29
  37. 81
  38. 22
  39. 74
  40. 134

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