← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 226 · 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 46 =
  2. 2.Half of 154 =
  3. 3.Half of 52 =
  4. 4.Double 47 =
  5. 5.Half of 44 =
  6. 6.Double 16 =
  7. 7.Half of 32 =
  8. 8.Double 26 =
  9. 9.Double 17 =
  10. 10.Double 91 =
  11. 11.Half of 98 =
  12. 12.Double 18 =
  13. 13.Double 57 =
  14. 14.Double 11 =
  15. 15.Half of 156 =
  16. 16.Half of 38 =
  17. 17.Double 89 =
  18. 18.Double 86 =
  19. 19.Half of 142 =
  20. 20.Double 39 =
  21. 21.Half of 66 =
  22. 22.Double 96 =
  23. 23.Double 76 =
  24. 24.Half of 82 =
  25. 25.Half of 162 =
  26. 26.Double 73 =
  27. 27.Double 58 =
  28. 28.Half of 192 =
  29. 29.Double 53 =
  30. 30.Half of 114 =
  31. 31.Double 38 =
  32. 32.Double 79 =
  33. 33.Half of 152 =
  34. 34.Half of 24 =
  35. 35.Half of 194 =
  36. 36.Double 44 =
  37. 37.Double 77 =
  38. 38.Half of 144 =
  39. 39.Double 21 =
  40. 40.Double 61 =

Answer key

  1. 92
  2. 77
  3. 26
  4. 94
  5. 22
  6. 32
  7. 16
  8. 52
  9. 34
  10. 182
  11. 49
  12. 36
  13. 114
  14. 22
  15. 78
  16. 19
  17. 178
  18. 172
  19. 71
  20. 78
  21. 33
  22. 192
  23. 152
  24. 41
  25. 81
  26. 146
  27. 116
  28. 96
  29. 106
  30. 57
  31. 76
  32. 158
  33. 76
  34. 12
  35. 97
  36. 88
  37. 154
  38. 72
  39. 42
  40. 122

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