← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 814 · 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 88 =
  2. 2.Double 42 =
  3. 3.Half of 86 =
  4. 4.Half of 22 =
  5. 5.Half of 116 =
  6. 6.Half of 132 =
  7. 7.Half of 62 =
  8. 8.Double 15 =
  9. 9.Double 81 =
  10. 10.Double 66 =
  11. 11.Half of 52 =
  12. 12.Double 49 =
  13. 13.Half of 128 =
  14. 14.Half of 162 =
  15. 15.Double 31 =
  16. 16.Double 54 =
  17. 17.Half of 12 =
  18. 18.Half of 186 =
  19. 19.Half of 168 =
  20. 20.Half of 182 =
  21. 21.Double 18 =
  22. 22.Double 96 =
  23. 23.Double 19 =
  24. 24.Double 59 =
  25. 25.Half of 24 =
  26. 26.Half of 142 =
  27. 27.Half of 152 =
  28. 28.Half of 154 =
  29. 29.Half of 184 =
  30. 30.Half of 134 =
  31. 31.Half of 16 =
  32. 32.Double 89 =
  33. 33.Half of 98 =
  34. 34.Half of 32 =
  35. 35.Half of 76 =
  36. 36.Half of 54 =
  37. 37.Double 45 =
  38. 38.Double 39 =
  39. 39.Double 12 =
  40. 40.Double 58 =

Answer key

  1. 44
  2. 84
  3. 43
  4. 11
  5. 58
  6. 66
  7. 31
  8. 30
  9. 162
  10. 132
  11. 26
  12. 98
  13. 64
  14. 81
  15. 62
  16. 108
  17. 6
  18. 93
  19. 84
  20. 91
  21. 36
  22. 192
  23. 38
  24. 118
  25. 12
  26. 71
  27. 76
  28. 77
  29. 92
  30. 67
  31. 8
  32. 178
  33. 49
  34. 16
  35. 38
  36. 27
  37. 90
  38. 78
  39. 24
  40. 116

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