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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 982 · 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 66 =
  2. 2.Half of 62 =
  3. 3.Half of 116 =
  4. 4.Half of 134 =
  5. 5.Half of 24 =
  6. 6.Half of 156 =
  7. 7.Double 27 =
  8. 8.Double 71 =
  9. 9.Half of 152 =
  10. 10.Half of 112 =
  11. 11.Double 69 =
  12. 12.Double 61 =
  13. 13.Half of 166 =
  14. 14.Half of 14 =
  15. 15.Double 95 =
  16. 16.Half of 42 =
  17. 17.Half of 74 =
  18. 18.Half of 38 =
  19. 19.Double 75 =
  20. 20.Double 21 =
  21. 21.Half of 34 =
  22. 22.Half of 124 =
  23. 23.Half of 196 =
  24. 24.Double 35 =
  25. 25.Double 11 =
  26. 26.Double 92 =
  27. 27.Double 66 =
  28. 28.Double 74 =
  29. 29.Half of 182 =
  30. 30.Half of 44 =
  31. 31.Half of 118 =
  32. 32.Double 12 =
  33. 33.Double 26 =
  34. 34.Half of 82 =
  35. 35.Double 46 =
  36. 36.Double 93 =
  37. 37.Half of 136 =
  38. 38.Half of 106 =
  39. 39.Double 43 =
  40. 40.Double 48 =

Answer key

  1. 33
  2. 31
  3. 58
  4. 67
  5. 12
  6. 78
  7. 54
  8. 142
  9. 76
  10. 56
  11. 138
  12. 122
  13. 83
  14. 7
  15. 190
  16. 21
  17. 37
  18. 19
  19. 150
  20. 42
  21. 17
  22. 62
  23. 98
  24. 70
  25. 22
  26. 184
  27. 132
  28. 148
  29. 91
  30. 22
  31. 59
  32. 24
  33. 52
  34. 41
  35. 92
  36. 186
  37. 68
  38. 53
  39. 86
  40. 96

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