← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 140 · 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 88 =
  2. 2.Half of 92 =
  3. 3.Half of 76 =
  4. 4.Half of 102 =
  5. 5.Double 52 =
  6. 6.Half of 32 =
  7. 7.Double 78 =
  8. 8.Double 71 =
  9. 9.Half of 24 =
  10. 10.Half of 14 =
  11. 11.Double 49 =
  12. 12.Half of 122 =
  13. 13.Half of 72 =
  14. 14.Double 63 =
  15. 15.Double 68 =
  16. 16.Double 82 =
  17. 17.Double 44 =
  18. 18.Half of 166 =
  19. 19.Double 76 =
  20. 20.Half of 78 =
  21. 21.Half of 26 =
  22. 22.Double 61 =
  23. 23.Double 45 =
  24. 24.Double 23 =
  25. 25.Double 32 =
  26. 26.Half of 36 =
  27. 27.Double 25 =
  28. 28.Double 56 =
  29. 29.Half of 108 =
  30. 30.Double 35 =
  31. 31.Double 22 =
  32. 32.Double 91 =
  33. 33.Half of 118 =
  34. 34.Double 59 =
  35. 35.Half of 182 =
  36. 36.Double 73 =
  37. 37.Half of 84 =
  38. 38.Double 31 =
  39. 39.Half of 188 =
  40. 40.Half of 34 =

Answer key

  1. 176
  2. 46
  3. 38
  4. 51
  5. 104
  6. 16
  7. 156
  8. 142
  9. 12
  10. 7
  11. 98
  12. 61
  13. 36
  14. 126
  15. 136
  16. 164
  17. 88
  18. 83
  19. 152
  20. 39
  21. 13
  22. 122
  23. 90
  24. 46
  25. 64
  26. 18
  27. 50
  28. 112
  29. 54
  30. 70
  31. 44
  32. 182
  33. 59
  34. 118
  35. 91
  36. 146
  37. 42
  38. 62
  39. 94
  40. 17

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