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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 963 · 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 26 =
  2. 2.Double 32 =
  3. 3.Half of 54 =
  4. 4.Double 43 =
  5. 5.Double 83 =
  6. 6.Half of 44 =
  7. 7.Double 93 =
  8. 8.Half of 104 =
  9. 9.Half of 182 =
  10. 10.Double 22 =
  11. 11.Double 27 =
  12. 12.Double 49 =
  13. 13.Half of 192 =
  14. 14.Double 29 =
  15. 15.Double 14 =
  16. 16.Half of 116 =
  17. 17.Double 61 =
  18. 18.Half of 16 =
  19. 19.Double 92 =
  20. 20.Double 67 =
  21. 21.Half of 22 =
  22. 22.Half of 96 =
  23. 23.Double 48 =
  24. 24.Half of 82 =
  25. 25.Half of 74 =
  26. 26.Double 85 =
  27. 27.Half of 132 =
  28. 28.Half of 14 =
  29. 29.Half of 188 =
  30. 30.Half of 194 =
  31. 31.Half of 184 =
  32. 32.Double 76 =
  33. 33.Double 31 =
  34. 34.Double 51 =
  35. 35.Half of 196 =
  36. 36.Double 99 =
  37. 37.Double 35 =
  38. 38.Half of 66 =
  39. 39.Double 21 =
  40. 40.Half of 144 =

Answer key

  1. 13
  2. 64
  3. 27
  4. 86
  5. 166
  6. 22
  7. 186
  8. 52
  9. 91
  10. 44
  11. 54
  12. 98
  13. 96
  14. 58
  15. 28
  16. 58
  17. 122
  18. 8
  19. 184
  20. 134
  21. 11
  22. 48
  23. 96
  24. 41
  25. 37
  26. 170
  27. 66
  28. 7
  29. 94
  30. 97
  31. 92
  32. 152
  33. 62
  34. 102
  35. 98
  36. 198
  37. 70
  38. 33
  39. 42
  40. 72

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