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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 856 · 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 95 =
  2. 2.Half of 82 =
  3. 3.Half of 192 =
  4. 4.Half of 78 =
  5. 5.Half of 72 =
  6. 6.Half of 168 =
  7. 7.Half of 158 =
  8. 8.Double 92 =
  9. 9.Double 45 =
  10. 10.Double 84 =
  11. 11.Double 62 =
  12. 12.Half of 198 =
  13. 13.Half of 182 =
  14. 14.Half of 174 =
  15. 15.Double 67 =
  16. 16.Double 49 =
  17. 17.Double 75 =
  18. 18.Half of 44 =
  19. 19.Double 65 =
  20. 20.Half of 62 =
  21. 21.Double 77 =
  22. 22.Half of 152 =
  23. 23.Double 58 =
  24. 24.Double 29 =
  25. 25.Half of 162 =
  26. 26.Double 42 =
  27. 27.Double 22 =
  28. 28.Double 27 =
  29. 29.Double 81 =
  30. 30.Half of 12 =
  31. 31.Double 61 =
  32. 32.Half of 164 =
  33. 33.Half of 184 =
  34. 34.Half of 92 =
  35. 35.Half of 124 =
  36. 36.Half of 28 =
  37. 37.Half of 86 =
  38. 38.Half of 26 =
  39. 39.Double 35 =
  40. 40.Half of 64 =

Answer key

  1. 190
  2. 41
  3. 96
  4. 39
  5. 36
  6. 84
  7. 79
  8. 184
  9. 90
  10. 168
  11. 124
  12. 99
  13. 91
  14. 87
  15. 134
  16. 98
  17. 150
  18. 22
  19. 130
  20. 31
  21. 154
  22. 76
  23. 116
  24. 58
  25. 81
  26. 84
  27. 44
  28. 54
  29. 162
  30. 6
  31. 122
  32. 82
  33. 92
  34. 46
  35. 62
  36. 14
  37. 43
  38. 13
  39. 70
  40. 32

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