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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 914 · 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 62 =
  2. 2.Double 75 =
  3. 3.Double 41 =
  4. 4.Double 31 =
  5. 5.Double 55 =
  6. 6.Half of 52 =
  7. 7.Double 88 =
  8. 8.Double 66 =
  9. 9.Double 76 =
  10. 10.Double 21 =
  11. 11.Double 36 =
  12. 12.Double 65 =
  13. 13.Half of 192 =
  14. 14.Half of 54 =
  15. 15.Half of 104 =
  16. 16.Half of 196 =
  17. 17.Half of 168 =
  18. 18.Half of 188 =
  19. 19.Half of 64 =
  20. 20.Double 54 =
  21. 21.Half of 126 =
  22. 22.Half of 28 =
  23. 23.Half of 14 =
  24. 24.Half of 32 =
  25. 25.Half of 166 =
  26. 26.Double 82 =
  27. 27.Half of 56 =
  28. 28.Double 81 =
  29. 29.Half of 146 =
  30. 30.Half of 42 =
  31. 31.Half of 78 =
  32. 32.Double 19 =
  33. 33.Half of 26 =
  34. 34.Double 11 =
  35. 35.Double 37 =
  36. 36.Double 61 =
  37. 37.Double 45 =
  38. 38.Half of 108 =
  39. 39.Half of 58 =
  40. 40.Double 64 =

Answer key

  1. 31
  2. 150
  3. 82
  4. 62
  5. 110
  6. 26
  7. 176
  8. 132
  9. 152
  10. 42
  11. 72
  12. 130
  13. 96
  14. 27
  15. 52
  16. 98
  17. 84
  18. 94
  19. 32
  20. 108
  21. 63
  22. 14
  23. 7
  24. 16
  25. 83
  26. 164
  27. 28
  28. 162
  29. 73
  30. 21
  31. 39
  32. 38
  33. 13
  34. 22
  35. 74
  36. 122
  37. 90
  38. 54
  39. 29
  40. 128

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