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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 51 · 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 114 =
  2. 2.Half of 62 =
  3. 3.Half of 64 =
  4. 4.Double 28 =
  5. 5.Half of 176 =
  6. 6.Half of 56 =
  7. 7.Double 59 =
  8. 8.Half of 32 =
  9. 9.Double 96 =
  10. 10.Double 75 =
  11. 11.Half of 174 =
  12. 12.Double 72 =
  13. 13.Half of 92 =
  14. 14.Half of 186 =
  15. 15.Half of 52 =
  16. 16.Half of 162 =
  17. 17.Double 71 =
  18. 18.Double 23 =
  19. 19.Half of 122 =
  20. 20.Half of 144 =
  21. 21.Half of 142 =
  22. 22.Half of 106 =
  23. 23.Double 67 =
  24. 24.Double 18 =
  25. 25.Half of 18 =
  26. 26.Double 64 =
  27. 27.Half of 54 =
  28. 28.Double 83 =
  29. 29.Half of 132 =
  30. 30.Double 21 =
  31. 31.Half of 76 =
  32. 32.Double 74 =
  33. 33.Double 11 =
  34. 34.Double 69 =
  35. 35.Double 44 =
  36. 36.Half of 66 =
  37. 37.Half of 16 =
  38. 38.Half of 38 =
  39. 39.Half of 98 =
  40. 40.Double 86 =

Answer key

  1. 57
  2. 31
  3. 32
  4. 56
  5. 88
  6. 28
  7. 118
  8. 16
  9. 192
  10. 150
  11. 87
  12. 144
  13. 46
  14. 93
  15. 26
  16. 81
  17. 142
  18. 46
  19. 61
  20. 72
  21. 71
  22. 53
  23. 134
  24. 36
  25. 9
  26. 128
  27. 27
  28. 166
  29. 66
  30. 42
  31. 38
  32. 148
  33. 22
  34. 138
  35. 88
  36. 33
  37. 8
  38. 19
  39. 49
  40. 172

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