← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 56 · 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 18 =
  2. 2.Half of 184 =
  3. 3.Half of 152 =
  4. 4.Half of 26 =
  5. 5.Half of 118 =
  6. 6.Half of 188 =
  7. 7.Half of 148 =
  8. 8.Double 65 =
  9. 9.Half of 52 =
  10. 10.Double 83 =
  11. 11.Double 29 =
  12. 12.Half of 142 =
  13. 13.Double 55 =
  14. 14.Half of 92 =
  15. 15.Double 69 =
  16. 16.Half of 46 =
  17. 17.Double 59 =
  18. 18.Double 63 =
  19. 19.Half of 32 =
  20. 20.Double 56 =
  21. 21.Double 35 =
  22. 22.Double 11 =
  23. 23.Double 91 =
  24. 24.Half of 114 =
  25. 25.Double 71 =
  26. 26.Half of 174 =
  27. 27.Double 31 =
  28. 28.Double 81 =
  29. 29.Double 41 =
  30. 30.Half of 164 =
  31. 31.Double 46 =
  32. 32.Half of 196 =
  33. 33.Double 33 =
  34. 34.Double 14 =
  35. 35.Double 51 =
  36. 36.Double 13 =
  37. 37.Half of 12 =
  38. 38.Double 96 =
  39. 39.Half of 44 =
  40. 40.Double 23 =

Answer key

  1. 9
  2. 92
  3. 76
  4. 13
  5. 59
  6. 94
  7. 74
  8. 130
  9. 26
  10. 166
  11. 58
  12. 71
  13. 110
  14. 46
  15. 138
  16. 23
  17. 118
  18. 126
  19. 16
  20. 112
  21. 70
  22. 22
  23. 182
  24. 57
  25. 142
  26. 87
  27. 62
  28. 162
  29. 82
  30. 82
  31. 92
  32. 98
  33. 66
  34. 28
  35. 102
  36. 26
  37. 6
  38. 192
  39. 22
  40. 46

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