← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 681 · 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 82 =
  2. 2.Half of 138 =
  3. 3.Double 65 =
  4. 4.Double 24 =
  5. 5.Half of 112 =
  6. 6.Half of 182 =
  7. 7.Double 83 =
  8. 8.Double 27 =
  9. 9.Half of 96 =
  10. 10.Half of 72 =
  11. 11.Half of 104 =
  12. 12.Half of 118 =
  13. 13.Half of 142 =
  14. 14.Half of 54 =
  15. 15.Double 15 =
  16. 16.Double 85 =
  17. 17.Double 29 =
  18. 18.Double 57 =
  19. 19.Double 47 =
  20. 20.Half of 152 =
  21. 21.Half of 64 =
  22. 22.Double 37 =
  23. 23.Double 42 =
  24. 24.Double 49 =
  25. 25.Double 26 =
  26. 26.Half of 66 =
  27. 27.Half of 52 =
  28. 28.Half of 78 =
  29. 29.Double 14 =
  30. 30.Double 94 =
  31. 31.Double 41 =
  32. 32.Double 51 =
  33. 33.Double 38 =
  34. 34.Double 31 =
  35. 35.Half of 22 =
  36. 36.Double 89 =
  37. 37.Double 36 =
  38. 38.Double 73 =
  39. 39.Double 43 =
  40. 40.Double 87 =

Answer key

  1. 41
  2. 69
  3. 130
  4. 48
  5. 56
  6. 91
  7. 166
  8. 54
  9. 48
  10. 36
  11. 52
  12. 59
  13. 71
  14. 27
  15. 30
  16. 170
  17. 58
  18. 114
  19. 94
  20. 76
  21. 32
  22. 74
  23. 84
  24. 98
  25. 52
  26. 33
  27. 26
  28. 39
  29. 28
  30. 188
  31. 82
  32. 102
  33. 76
  34. 62
  35. 11
  36. 178
  37. 72
  38. 146
  39. 86
  40. 174

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