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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 676 · 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 96 =
  2. 2.Double 79 =
  3. 3.Half of 162 =
  4. 4.Half of 64 =
  5. 5.Half of 44 =
  6. 6.Half of 182 =
  7. 7.Double 76 =
  8. 8.Half of 94 =
  9. 9.Half of 22 =
  10. 10.Double 46 =
  11. 11.Double 29 =
  12. 12.Half of 194 =
  13. 13.Double 34 =
  14. 14.Half of 42 =
  15. 15.Half of 154 =
  16. 16.Half of 34 =
  17. 17.Double 17 =
  18. 18.Double 13 =
  19. 19.Double 24 =
  20. 20.Half of 76 =
  21. 21.Double 14 =
  22. 22.Double 15 =
  23. 23.Half of 156 =
  24. 24.Half of 134 =
  25. 25.Double 99 =
  26. 26.Half of 122 =
  27. 27.Double 21 =
  28. 28.Half of 166 =
  29. 29.Half of 106 =
  30. 30.Double 84 =
  31. 31.Double 22 =
  32. 32.Half of 178 =
  33. 33.Double 87 =
  34. 34.Double 32 =
  35. 35.Double 95 =
  36. 36.Double 78 =
  37. 37.Double 35 =
  38. 38.Double 62 =
  39. 39.Double 81 =
  40. 40.Half of 78 =

Answer key

  1. 192
  2. 158
  3. 81
  4. 32
  5. 22
  6. 91
  7. 152
  8. 47
  9. 11
  10. 92
  11. 58
  12. 97
  13. 68
  14. 21
  15. 77
  16. 17
  17. 34
  18. 26
  19. 48
  20. 38
  21. 28
  22. 30
  23. 78
  24. 67
  25. 198
  26. 61
  27. 42
  28. 83
  29. 53
  30. 168
  31. 44
  32. 89
  33. 174
  34. 64
  35. 190
  36. 156
  37. 70
  38. 124
  39. 162
  40. 39

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