← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 866 · 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.Double 29 =
  2. 2.Half of 104 =
  3. 3.Half of 44 =
  4. 4.Half of 124 =
  5. 5.Half of 42 =
  6. 6.Double 56 =
  7. 7.Half of 84 =
  8. 8.Half of 112 =
  9. 9.Half of 162 =
  10. 10.Double 69 =
  11. 11.Double 74 =
  12. 12.Double 57 =
  13. 13.Half of 148 =
  14. 14.Double 25 =
  15. 15.Half of 38 =
  16. 16.Half of 178 =
  17. 17.Half of 142 =
  18. 18.Double 81 =
  19. 19.Half of 158 =
  20. 20.Half of 176 =
  21. 21.Double 83 =
  22. 22.Half of 66 =
  23. 23.Half of 22 =
  24. 24.Half of 32 =
  25. 25.Half of 126 =
  26. 26.Double 96 =
  27. 27.Double 14 =
  28. 28.Double 18 =
  29. 29.Half of 132 =
  30. 30.Half of 152 =
  31. 31.Half of 14 =
  32. 32.Half of 62 =
  33. 33.Double 86 =
  34. 34.Double 28 =
  35. 35.Double 59 =
  36. 36.Half of 28 =
  37. 37.Half of 166 =
  38. 38.Double 82 =
  39. 39.Half of 182 =
  40. 40.Half of 34 =

Answer key

  1. 58
  2. 52
  3. 22
  4. 62
  5. 21
  6. 112
  7. 42
  8. 56
  9. 81
  10. 138
  11. 148
  12. 114
  13. 74
  14. 50
  15. 19
  16. 89
  17. 71
  18. 162
  19. 79
  20. 88
  21. 166
  22. 33
  23. 11
  24. 16
  25. 63
  26. 192
  27. 28
  28. 36
  29. 66
  30. 76
  31. 7
  32. 31
  33. 172
  34. 56
  35. 118
  36. 14
  37. 83
  38. 164
  39. 91
  40. 17

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