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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 320 · 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 126 =
  2. 2.Double 16 =
  3. 3.Double 27 =
  4. 4.Double 92 =
  5. 5.Half of 52 =
  6. 6.Half of 76 =
  7. 7.Double 21 =
  8. 8.Half of 132 =
  9. 9.Half of 56 =
  10. 10.Double 64 =
  11. 11.Double 44 =
  12. 12.Half of 98 =
  13. 13.Double 96 =
  14. 14.Double 32 =
  15. 15.Double 28 =
  16. 16.Half of 118 =
  17. 17.Double 85 =
  18. 18.Half of 182 =
  19. 19.Double 87 =
  20. 20.Double 11 =
  21. 21.Half of 138 =
  22. 22.Half of 12 =
  23. 23.Half of 34 =
  24. 24.Half of 144 =
  25. 25.Half of 82 =
  26. 26.Half of 94 =
  27. 27.Double 34 =
  28. 28.Half of 196 =
  29. 29.Half of 168 =
  30. 30.Half of 44 =
  31. 31.Half of 42 =
  32. 32.Half of 154 =
  33. 33.Double 69 =
  34. 34.Double 51 =
  35. 35.Double 95 =
  36. 36.Double 72 =
  37. 37.Half of 32 =
  38. 38.Double 52 =
  39. 39.Double 37 =
  40. 40.Half of 22 =

Answer key

  1. 63
  2. 32
  3. 54
  4. 184
  5. 26
  6. 38
  7. 42
  8. 66
  9. 28
  10. 128
  11. 88
  12. 49
  13. 192
  14. 64
  15. 56
  16. 59
  17. 170
  18. 91
  19. 174
  20. 22
  21. 69
  22. 6
  23. 17
  24. 72
  25. 41
  26. 47
  27. 68
  28. 98
  29. 84
  30. 22
  31. 21
  32. 77
  33. 138
  34. 102
  35. 190
  36. 144
  37. 16
  38. 104
  39. 74
  40. 11

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