← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 9 · 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 14 =
  2. 2.Double 74 =
  3. 3.Double 35 =
  4. 4.Double 87 =
  5. 5.Half of 48 =
  6. 6.Half of 182 =
  7. 7.Half of 142 =
  8. 8.Double 17 =
  9. 9.Double 32 =
  10. 10.Half of 106 =
  11. 11.Half of 82 =
  12. 12.Half of 198 =
  13. 13.Double 64 =
  14. 14.Double 24 =
  15. 15.Double 61 =
  16. 16.Double 23 =
  17. 17.Double 48 =
  18. 18.Double 51 =
  19. 19.Double 42 =
  20. 20.Double 27 =
  21. 21.Double 55 =
  22. 22.Double 81 =
  23. 23.Double 39 =
  24. 24.Half of 172 =
  25. 25.Double 33 =
  26. 26.Double 58 =
  27. 27.Double 36 =
  28. 28.Double 91 =
  29. 29.Half of 72 =
  30. 30.Half of 166 =
  31. 31.Double 82 =
  32. 32.Half of 36 =
  33. 33.Double 46 =
  34. 34.Half of 22 =
  35. 35.Half of 54 =
  36. 36.Double 72 =
  37. 37.Half of 118 =
  38. 38.Half of 38 =
  39. 39.Half of 18 =
  40. 40.Double 79 =

Answer key

  1. 28
  2. 148
  3. 70
  4. 174
  5. 24
  6. 91
  7. 71
  8. 34
  9. 64
  10. 53
  11. 41
  12. 99
  13. 128
  14. 48
  15. 122
  16. 46
  17. 96
  18. 102
  19. 84
  20. 54
  21. 110
  22. 162
  23. 78
  24. 86
  25. 66
  26. 116
  27. 72
  28. 182
  29. 36
  30. 83
  31. 164
  32. 18
  33. 92
  34. 11
  35. 27
  36. 144
  37. 59
  38. 19
  39. 9
  40. 158

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