← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 73 · 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 22 =
  2. 2.Double 57 =
  3. 3.Half of 172 =
  4. 4.Double 78 =
  5. 5.Half of 32 =
  6. 6.Double 91 =
  7. 7.Half of 192 =
  8. 8.Half of 142 =
  9. 9.Double 81 =
  10. 10.Double 56 =
  11. 11.Double 89 =
  12. 12.Half of 118 =
  13. 13.Half of 58 =
  14. 14.Double 44 =
  15. 15.Half of 42 =
  16. 16.Double 25 =
  17. 17.Double 62 =
  18. 18.Double 96 =
  19. 19.Double 65 =
  20. 20.Double 31 =
  21. 21.Half of 182 =
  22. 22.Half of 122 =
  23. 23.Double 77 =
  24. 24.Double 61 =
  25. 25.Half of 156 =
  26. 26.Double 54 =
  27. 27.Half of 176 =
  28. 28.Half of 68 =
  29. 29.Double 28 =
  30. 30.Half of 134 =
  31. 31.Double 51 =
  32. 32.Half of 86 =
  33. 33.Double 72 =
  34. 34.Half of 16 =
  35. 35.Double 55 =
  36. 36.Half of 96 =
  37. 37.Half of 28 =
  38. 38.Double 32 =
  39. 39.Half of 76 =
  40. 40.Double 19 =

Answer key

  1. 11
  2. 114
  3. 86
  4. 156
  5. 16
  6. 182
  7. 96
  8. 71
  9. 162
  10. 112
  11. 178
  12. 59
  13. 29
  14. 88
  15. 21
  16. 50
  17. 124
  18. 192
  19. 130
  20. 62
  21. 91
  22. 61
  23. 154
  24. 122
  25. 78
  26. 108
  27. 88
  28. 34
  29. 56
  30. 67
  31. 102
  32. 43
  33. 144
  34. 8
  35. 110
  36. 48
  37. 14
  38. 64
  39. 38
  40. 38

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