← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 553 · 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 64 =
  2. 2.Half of 122 =
  3. 3.Double 27 =
  4. 4.Half of 178 =
  5. 5.Double 41 =
  6. 6.Half of 76 =
  7. 7.Double 29 =
  8. 8.Double 59 =
  9. 9.Half of 68 =
  10. 10.Double 11 =
  11. 11.Double 69 =
  12. 12.Half of 82 =
  13. 13.Double 71 =
  14. 14.Half of 184 =
  15. 15.Half of 88 =
  16. 16.Double 25 =
  17. 17.Half of 154 =
  18. 18.Half of 72 =
  19. 19.Double 54 =
  20. 20.Half of 152 =
  21. 21.Half of 38 =
  22. 22.Half of 98 =
  23. 23.Half of 196 =
  24. 24.Double 97 =
  25. 25.Double 65 =
  26. 26.Double 22 =
  27. 27.Double 89 =
  28. 28.Half of 134 =
  29. 29.Half of 194 =
  30. 30.Half of 28 =
  31. 31.Half of 114 =
  32. 32.Half of 192 =
  33. 33.Double 37 =
  34. 34.Half of 22 =
  35. 35.Double 96 =
  36. 36.Double 94 =
  37. 37.Double 47 =
  38. 38.Half of 146 =
  39. 39.Half of 112 =
  40. 40.Half of 36 =

Answer key

  1. 32
  2. 61
  3. 54
  4. 89
  5. 82
  6. 38
  7. 58
  8. 118
  9. 34
  10. 22
  11. 138
  12. 41
  13. 142
  14. 92
  15. 44
  16. 50
  17. 77
  18. 36
  19. 108
  20. 76
  21. 19
  22. 49
  23. 98
  24. 194
  25. 130
  26. 44
  27. 178
  28. 67
  29. 97
  30. 14
  31. 57
  32. 96
  33. 74
  34. 11
  35. 192
  36. 188
  37. 94
  38. 73
  39. 56
  40. 18

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