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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 853 · 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 52 =
  2. 2.Half of 172 =
  3. 3.Half of 34 =
  4. 4.Double 79 =
  5. 5.Double 51 =
  6. 6.Half of 182 =
  7. 7.Double 71 =
  8. 8.Double 77 =
  9. 9.Half of 136 =
  10. 10.Double 26 =
  11. 11.Double 41 =
  12. 12.Double 25 =
  13. 13.Double 22 =
  14. 14.Double 96 =
  15. 15.Double 39 =
  16. 16.Half of 192 =
  17. 17.Half of 38 =
  18. 18.Half of 82 =
  19. 19.Double 84 =
  20. 20.Double 46 =
  21. 21.Half of 142 =
  22. 22.Half of 86 =
  23. 23.Half of 94 =
  24. 24.Half of 96 =
  25. 25.Double 61 =
  26. 26.Double 12 =
  27. 27.Half of 62 =
  28. 28.Half of 66 =
  29. 29.Double 42 =
  30. 30.Double 53 =
  31. 31.Half of 28 =
  32. 32.Half of 102 =
  33. 33.Half of 114 =
  34. 34.Half of 118 =
  35. 35.Double 66 =
  36. 36.Double 97 =
  37. 37.Double 94 =
  38. 38.Half of 198 =
  39. 39.Half of 92 =
  40. 40.Half of 152 =

Answer key

  1. 26
  2. 86
  3. 17
  4. 158
  5. 102
  6. 91
  7. 142
  8. 154
  9. 68
  10. 52
  11. 82
  12. 50
  13. 44
  14. 192
  15. 78
  16. 96
  17. 19
  18. 41
  19. 168
  20. 92
  21. 71
  22. 43
  23. 47
  24. 48
  25. 122
  26. 24
  27. 31
  28. 33
  29. 84
  30. 106
  31. 14
  32. 51
  33. 57
  34. 59
  35. 132
  36. 194
  37. 188
  38. 99
  39. 46
  40. 76

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