← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 692 · 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 19 =
  2. 2.Double 33 =
  3. 3.Double 52 =
  4. 4.Double 26 =
  5. 5.Half of 142 =
  6. 6.Half of 48 =
  7. 7.Half of 188 =
  8. 8.Double 48 =
  9. 9.Double 51 =
  10. 10.Double 34 =
  11. 11.Double 11 =
  12. 12.Double 82 =
  13. 13.Half of 32 =
  14. 14.Double 13 =
  15. 15.Half of 88 =
  16. 16.Half of 114 =
  17. 17.Half of 58 =
  18. 18.Half of 16 =
  19. 19.Half of 86 =
  20. 20.Double 57 =
  21. 21.Half of 152 =
  22. 22.Double 17 =
  23. 23.Double 41 =
  24. 24.Double 77 =
  25. 25.Double 24 =
  26. 26.Double 44 =
  27. 27.Double 76 =
  28. 28.Half of 176 =
  29. 29.Double 78 =
  30. 30.Double 32 =
  31. 31.Half of 18 =
  32. 32.Double 68 =
  33. 33.Double 43 =
  34. 34.Double 28 =
  35. 35.Half of 164 =
  36. 36.Half of 178 =
  37. 37.Double 67 =
  38. 38.Double 54 =
  39. 39.Half of 92 =
  40. 40.Half of 102 =

Answer key

  1. 38
  2. 66
  3. 104
  4. 52
  5. 71
  6. 24
  7. 94
  8. 96
  9. 102
  10. 68
  11. 22
  12. 164
  13. 16
  14. 26
  15. 44
  16. 57
  17. 29
  18. 8
  19. 43
  20. 114
  21. 76
  22. 34
  23. 82
  24. 154
  25. 48
  26. 88
  27. 152
  28. 88
  29. 156
  30. 64
  31. 9
  32. 136
  33. 86
  34. 56
  35. 82
  36. 89
  37. 134
  38. 108
  39. 46
  40. 51

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