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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 696 · 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 112 =
  2. 2.Half of 98 =
  3. 3.Half of 36 =
  4. 4.Half of 186 =
  5. 5.Double 57 =
  6. 6.Double 94 =
  7. 7.Double 49 =
  8. 8.Double 34 =
  9. 9.Half of 132 =
  10. 10.Half of 152 =
  11. 11.Double 66 =
  12. 12.Half of 12 =
  13. 13.Half of 166 =
  14. 14.Double 59 =
  15. 15.Half of 148 =
  16. 16.Half of 192 =
  17. 17.Half of 24 =
  18. 18.Double 29 =
  19. 19.Half of 26 =
  20. 20.Half of 52 =
  21. 21.Double 45 =
  22. 22.Half of 44 =
  23. 23.Half of 144 =
  24. 24.Double 43 =
  25. 25.Half of 62 =
  26. 26.Half of 106 =
  27. 27.Half of 32 =
  28. 28.Double 33 =
  29. 29.Half of 46 =
  30. 30.Half of 84 =
  31. 31.Double 23 =
  32. 32.Half of 94 =
  33. 33.Half of 134 =
  34. 34.Double 42 =
  35. 35.Half of 126 =
  36. 36.Double 79 =
  37. 37.Double 76 =
  38. 38.Double 31 =
  39. 39.Double 93 =
  40. 40.Double 78 =

Answer key

  1. 56
  2. 49
  3. 18
  4. 93
  5. 114
  6. 188
  7. 98
  8. 68
  9. 66
  10. 76
  11. 132
  12. 6
  13. 83
  14. 118
  15. 74
  16. 96
  17. 12
  18. 58
  19. 13
  20. 26
  21. 90
  22. 22
  23. 72
  24. 86
  25. 31
  26. 53
  27. 16
  28. 66
  29. 23
  30. 42
  31. 46
  32. 47
  33. 67
  34. 84
  35. 63
  36. 158
  37. 152
  38. 62
  39. 186
  40. 156

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