← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 817 · 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 25 =
  2. 2.Half of 22 =
  3. 3.Half of 172 =
  4. 4.Double 59 =
  5. 5.Double 78 =
  6. 6.Half of 18 =
  7. 7.Half of 12 =
  8. 8.Double 24 =
  9. 9.Half of 158 =
  10. 10.Half of 16 =
  11. 11.Half of 168 =
  12. 12.Half of 82 =
  13. 13.Double 91 =
  14. 14.Half of 162 =
  15. 15.Double 41 =
  16. 16.Double 71 =
  17. 17.Double 12 =
  18. 18.Double 48 =
  19. 19.Double 22 =
  20. 20.Double 89 =
  21. 21.Half of 52 =
  22. 22.Half of 164 =
  23. 23.Half of 116 =
  24. 24.Half of 14 =
  25. 25.Double 65 =
  26. 26.Double 28 =
  27. 27.Half of 86 =
  28. 28.Double 64 =
  29. 29.Half of 138 =
  30. 30.Double 33 =
  31. 31.Double 23 =
  32. 32.Double 19 =
  33. 33.Half of 104 =
  34. 34.Half of 108 =
  35. 35.Double 26 =
  36. 36.Half of 44 =
  37. 37.Half of 84 =
  38. 38.Double 62 =
  39. 39.Double 45 =
  40. 40.Double 69 =

Answer key

  1. 50
  2. 11
  3. 86
  4. 118
  5. 156
  6. 9
  7. 6
  8. 48
  9. 79
  10. 8
  11. 84
  12. 41
  13. 182
  14. 81
  15. 82
  16. 142
  17. 24
  18. 96
  19. 44
  20. 178
  21. 26
  22. 82
  23. 58
  24. 7
  25. 130
  26. 56
  27. 43
  28. 128
  29. 69
  30. 66
  31. 46
  32. 38
  33. 52
  34. 54
  35. 52
  36. 22
  37. 42
  38. 124
  39. 90
  40. 138

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