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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 833 · 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 152 =
  2. 2.Double 91 =
  3. 3.Double 51 =
  4. 4.Half of 14 =
  5. 5.Double 41 =
  6. 6.Double 56 =
  7. 7.Double 88 =
  8. 8.Half of 42 =
  9. 9.Double 21 =
  10. 10.Double 76 =
  11. 11.Half of 144 =
  12. 12.Double 66 =
  13. 13.Half of 76 =
  14. 14.Double 53 =
  15. 15.Half of 32 =
  16. 16.Half of 52 =
  17. 17.Double 42 =
  18. 18.Half of 112 =
  19. 19.Half of 182 =
  20. 20.Half of 174 =
  21. 21.Double 84 =
  22. 22.Double 44 =
  23. 23.Half of 132 =
  24. 24.Half of 156 =
  25. 25.Double 14 =
  26. 26.Half of 92 =
  27. 27.Half of 72 =
  28. 28.Double 68 =
  29. 29.Double 31 =
  30. 30.Half of 198 =
  31. 31.Half of 114 =
  32. 32.Double 87 =
  33. 33.Half of 88 =
  34. 34.Double 17 =
  35. 35.Half of 158 =
  36. 36.Double 99 =
  37. 37.Double 81 =
  38. 38.Double 39 =
  39. 39.Double 96 =
  40. 40.Double 73 =

Answer key

  1. 76
  2. 182
  3. 102
  4. 7
  5. 82
  6. 112
  7. 176
  8. 21
  9. 42
  10. 152
  11. 72
  12. 132
  13. 38
  14. 106
  15. 16
  16. 26
  17. 84
  18. 56
  19. 91
  20. 87
  21. 168
  22. 88
  23. 66
  24. 78
  25. 28
  26. 46
  27. 36
  28. 136
  29. 62
  30. 99
  31. 57
  32. 174
  33. 44
  34. 34
  35. 79
  36. 198
  37. 162
  38. 78
  39. 192
  40. 146

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