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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 775 · 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 98 =
  2. 2.Half of 152 =
  3. 3.Double 34 =
  4. 4.Double 98 =
  5. 5.Double 77 =
  6. 6.Half of 198 =
  7. 7.Half of 56 =
  8. 8.Half of 52 =
  9. 9.Half of 26 =
  10. 10.Half of 176 =
  11. 11.Half of 154 =
  12. 12.Double 61 =
  13. 13.Double 74 =
  14. 14.Half of 112 =
  15. 15.Half of 94 =
  16. 16.Half of 68 =
  17. 17.Half of 192 =
  18. 18.Double 83 =
  19. 19.Double 17 =
  20. 20.Half of 16 =
  21. 21.Half of 48 =
  22. 22.Double 69 =
  23. 23.Half of 102 =
  24. 24.Half of 148 =
  25. 25.Double 26 =
  26. 26.Double 85 =
  27. 27.Double 48 =
  28. 28.Double 24 =
  29. 29.Double 29 =
  30. 30.Double 33 =
  31. 31.Double 58 =
  32. 32.Double 25 =
  33. 33.Half of 134 =
  34. 34.Double 21 =
  35. 35.Double 97 =
  36. 36.Double 31 =
  37. 37.Half of 22 =
  38. 38.Half of 118 =
  39. 39.Half of 82 =
  40. 40.Half of 194 =

Answer key

  1. 49
  2. 76
  3. 68
  4. 196
  5. 154
  6. 99
  7. 28
  8. 26
  9. 13
  10. 88
  11. 77
  12. 122
  13. 148
  14. 56
  15. 47
  16. 34
  17. 96
  18. 166
  19. 34
  20. 8
  21. 24
  22. 138
  23. 51
  24. 74
  25. 52
  26. 170
  27. 96
  28. 48
  29. 58
  30. 66
  31. 116
  32. 50
  33. 67
  34. 42
  35. 194
  36. 62
  37. 11
  38. 59
  39. 41
  40. 97

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