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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 752 · 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 166 =
  2. 2.Double 59 =
  3. 3.Half of 24 =
  4. 4.Half of 36 =
  5. 5.Double 39 =
  6. 6.Double 98 =
  7. 7.Double 19 =
  8. 8.Double 72 =
  9. 9.Double 97 =
  10. 10.Double 18 =
  11. 11.Half of 134 =
  12. 12.Half of 22 =
  13. 13.Half of 196 =
  14. 14.Double 58 =
  15. 15.Half of 142 =
  16. 16.Half of 78 =
  17. 17.Half of 188 =
  18. 18.Double 13 =
  19. 19.Half of 72 =
  20. 20.Double 43 =
  21. 21.Double 31 =
  22. 22.Half of 154 =
  23. 23.Half of 124 =
  24. 24.Half of 28 =
  25. 25.Double 21 =
  26. 26.Half of 18 =
  27. 27.Half of 44 =
  28. 28.Half of 136 =
  29. 29.Double 32 =
  30. 30.Double 26 =
  31. 31.Half of 84 =
  32. 32.Double 61 =
  33. 33.Half of 48 =
  34. 34.Double 48 =
  35. 35.Double 99 =
  36. 36.Half of 186 =
  37. 37.Half of 172 =
  38. 38.Double 95 =
  39. 39.Double 91 =
  40. 40.Half of 92 =

Answer key

  1. 83
  2. 118
  3. 12
  4. 18
  5. 78
  6. 196
  7. 38
  8. 144
  9. 194
  10. 36
  11. 67
  12. 11
  13. 98
  14. 116
  15. 71
  16. 39
  17. 94
  18. 26
  19. 36
  20. 86
  21. 62
  22. 77
  23. 62
  24. 14
  25. 42
  26. 9
  27. 22
  28. 68
  29. 64
  30. 52
  31. 42
  32. 122
  33. 24
  34. 96
  35. 198
  36. 93
  37. 86
  38. 190
  39. 182
  40. 46

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