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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 363 · 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 132 =
  2. 2.Half of 134 =
  3. 3.Double 71 =
  4. 4.Double 94 =
  5. 5.Double 12 =
  6. 6.Double 26 =
  7. 7.Double 28 =
  8. 8.Double 36 =
  9. 9.Half of 26 =
  10. 10.Double 69 =
  11. 11.Double 41 =
  12. 12.Double 81 =
  13. 13.Half of 118 =
  14. 14.Half of 142 =
  15. 15.Double 45 =
  16. 16.Double 25 =
  17. 17.Half of 22 =
  18. 18.Double 13 =
  19. 19.Half of 178 =
  20. 20.Half of 146 =
  21. 21.Double 48 =
  22. 22.Half of 54 =
  23. 23.Double 61 =
  24. 24.Half of 16 =
  25. 25.Half of 112 =
  26. 26.Half of 76 =
  27. 27.Half of 36 =
  28. 28.Double 23 =
  29. 29.Double 95 =
  30. 30.Half of 148 =
  31. 31.Double 14 =
  32. 32.Double 29 =
  33. 33.Double 43 =
  34. 34.Half of 136 =
  35. 35.Half of 128 =
  36. 36.Half of 122 =
  37. 37.Double 92 =
  38. 38.Double 64 =
  39. 39.Double 89 =
  40. 40.Half of 92 =

Answer key

  1. 66
  2. 67
  3. 142
  4. 188
  5. 24
  6. 52
  7. 56
  8. 72
  9. 13
  10. 138
  11. 82
  12. 162
  13. 59
  14. 71
  15. 90
  16. 50
  17. 11
  18. 26
  19. 89
  20. 73
  21. 96
  22. 27
  23. 122
  24. 8
  25. 56
  26. 38
  27. 18
  28. 46
  29. 190
  30. 74
  31. 28
  32. 58
  33. 86
  34. 68
  35. 64
  36. 61
  37. 184
  38. 128
  39. 178
  40. 46

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