← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 214 · 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 24 =
  2. 2.Half of 52 =
  3. 3.Double 55 =
  4. 4.Double 49 =
  5. 5.Double 31 =
  6. 6.Half of 118 =
  7. 7.Half of 136 =
  8. 8.Half of 36 =
  9. 9.Half of 102 =
  10. 10.Double 77 =
  11. 11.Half of 182 =
  12. 12.Half of 82 =
  13. 13.Half of 64 =
  14. 14.Half of 138 =
  15. 15.Half of 98 =
  16. 16.Half of 14 =
  17. 17.Half of 142 =
  18. 18.Double 14 =
  19. 19.Half of 72 =
  20. 20.Double 78 =
  21. 21.Double 19 =
  22. 22.Double 69 =
  23. 23.Half of 92 =
  24. 24.Half of 54 =
  25. 25.Half of 96 =
  26. 26.Double 96 =
  27. 27.Half of 126 =
  28. 28.Double 68 =
  29. 29.Double 51 =
  30. 30.Half of 192 =
  31. 31.Double 56 =
  32. 32.Half of 132 =
  33. 33.Double 85 =
  34. 34.Double 12 =
  35. 35.Half of 148 =
  36. 36.Double 36 =
  37. 37.Double 61 =
  38. 38.Double 91 =
  39. 39.Half of 34 =
  40. 40.Half of 46 =

Answer key

  1. 48
  2. 26
  3. 110
  4. 98
  5. 62
  6. 59
  7. 68
  8. 18
  9. 51
  10. 154
  11. 91
  12. 41
  13. 32
  14. 69
  15. 49
  16. 7
  17. 71
  18. 28
  19. 36
  20. 156
  21. 38
  22. 138
  23. 46
  24. 27
  25. 48
  26. 192
  27. 63
  28. 136
  29. 102
  30. 96
  31. 112
  32. 66
  33. 170
  34. 24
  35. 74
  36. 72
  37. 122
  38. 182
  39. 17
  40. 23

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