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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 611 · 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 56 =
  2. 2.Half of 192 =
  3. 3.Half of 66 =
  4. 4.Half of 126 =
  5. 5.Double 61 =
  6. 6.Double 72 =
  7. 7.Half of 88 =
  8. 8.Double 32 =
  9. 9.Half of 46 =
  10. 10.Double 65 =
  11. 11.Half of 164 =
  12. 12.Half of 104 =
  13. 13.Half of 32 =
  14. 14.Double 88 =
  15. 15.Double 85 =
  16. 16.Double 41 =
  17. 17.Half of 136 =
  18. 18.Double 47 =
  19. 19.Double 71 =
  20. 20.Double 31 =
  21. 21.Double 74 =
  22. 22.Double 95 =
  23. 23.Double 83 =
  24. 24.Double 97 =
  25. 25.Half of 156 =
  26. 26.Half of 188 =
  27. 27.Half of 92 =
  28. 28.Double 91 =
  29. 29.Double 52 =
  30. 30.Half of 118 =
  31. 31.Double 84 =
  32. 32.Double 86 =
  33. 33.Half of 182 =
  34. 34.Half of 198 =
  35. 35.Half of 52 =
  36. 36.Double 73 =
  37. 37.Half of 58 =
  38. 38.Double 33 =
  39. 39.Half of 172 =
  40. 40.Double 24 =

Answer key

  1. 28
  2. 96
  3. 33
  4. 63
  5. 122
  6. 144
  7. 44
  8. 64
  9. 23
  10. 130
  11. 82
  12. 52
  13. 16
  14. 176
  15. 170
  16. 82
  17. 68
  18. 94
  19. 142
  20. 62
  21. 148
  22. 190
  23. 166
  24. 194
  25. 78
  26. 94
  27. 46
  28. 182
  29. 104
  30. 59
  31. 168
  32. 172
  33. 91
  34. 99
  35. 26
  36. 146
  37. 29
  38. 66
  39. 86
  40. 48

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