← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 193 · 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 72 =
  2. 2.Half of 84 =
  3. 3.Double 16 =
  4. 4.Half of 176 =
  5. 5.Half of 194 =
  6. 6.Half of 114 =
  7. 7.Half of 94 =
  8. 8.Half of 142 =
  9. 9.Double 39 =
  10. 10.Double 48 =
  11. 11.Half of 28 =
  12. 12.Double 89 =
  13. 13.Double 29 =
  14. 14.Half of 78 =
  15. 15.Half of 56 =
  16. 16.Half of 154 =
  17. 17.Half of 92 =
  18. 18.Double 49 =
  19. 19.Double 95 =
  20. 20.Double 74 =
  21. 21.Double 83 =
  22. 22.Half of 106 =
  23. 23.Double 36 =
  24. 24.Half of 66 =
  25. 25.Half of 16 =
  26. 26.Double 34 =
  27. 27.Half of 88 =
  28. 28.Double 12 =
  29. 29.Half of 52 =
  30. 30.Double 52 =
  31. 31.Half of 14 =
  32. 32.Double 25 =
  33. 33.Double 56 =
  34. 34.Double 47 =
  35. 35.Half of 48 =
  36. 36.Half of 82 =
  37. 37.Double 41 =
  38. 38.Half of 192 =
  39. 39.Half of 136 =
  40. 40.Half of 64 =

Answer key

  1. 144
  2. 42
  3. 32
  4. 88
  5. 97
  6. 57
  7. 47
  8. 71
  9. 78
  10. 96
  11. 14
  12. 178
  13. 58
  14. 39
  15. 28
  16. 77
  17. 46
  18. 98
  19. 190
  20. 148
  21. 166
  22. 53
  23. 72
  24. 33
  25. 8
  26. 68
  27. 44
  28. 24
  29. 26
  30. 104
  31. 7
  32. 50
  33. 112
  34. 94
  35. 24
  36. 41
  37. 82
  38. 96
  39. 68
  40. 32

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