← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 572 · 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 74 =
  2. 2.Half of 44 =
  3. 3.Half of 22 =
  4. 4.Double 84 =
  5. 5.Double 81 =
  6. 6.Half of 88 =
  7. 7.Half of 54 =
  8. 8.Half of 138 =
  9. 9.Half of 96 =
  10. 10.Double 89 =
  11. 11.Half of 156 =
  12. 12.Double 53 =
  13. 13.Half of 118 =
  14. 14.Double 72 =
  15. 15.Half of 152 =
  16. 16.Half of 32 =
  17. 17.Half of 122 =
  18. 18.Half of 158 =
  19. 19.Half of 28 =
  20. 20.Double 66 =
  21. 21.Double 52 =
  22. 22.Double 49 =
  23. 23.Half of 164 =
  24. 24.Double 14 =
  25. 25.Half of 172 =
  26. 26.Double 79 =
  27. 27.Double 71 =
  28. 28.Half of 126 =
  29. 29.Double 51 =
  30. 30.Half of 116 =
  31. 31.Double 27 =
  32. 32.Double 43 =
  33. 33.Half of 98 =
  34. 34.Half of 102 =
  35. 35.Double 11 =
  36. 36.Double 16 =
  37. 37.Half of 114 =
  38. 38.Double 61 =
  39. 39.Half of 104 =
  40. 40.Double 99 =

Answer key

  1. 37
  2. 22
  3. 11
  4. 168
  5. 162
  6. 44
  7. 27
  8. 69
  9. 48
  10. 178
  11. 78
  12. 106
  13. 59
  14. 144
  15. 76
  16. 16
  17. 61
  18. 79
  19. 14
  20. 132
  21. 104
  22. 98
  23. 82
  24. 28
  25. 86
  26. 158
  27. 142
  28. 63
  29. 102
  30. 58
  31. 54
  32. 86
  33. 49
  34. 51
  35. 22
  36. 32
  37. 57
  38. 122
  39. 52
  40. 198

Free maths tricks lessons, practice and worksheets at talentjr.in/maths-tricks