← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 641 · 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 182 =
  2. 2.Half of 156 =
  3. 3.Half of 14 =
  4. 4.Half of 42 =
  5. 5.Half of 144 =
  6. 6.Double 25 =
  7. 7.Half of 58 =
  8. 8.Double 31 =
  9. 9.Double 51 =
  10. 10.Half of 114 =
  11. 11.Double 23 =
  12. 12.Half of 122 =
  13. 13.Double 47 =
  14. 14.Double 52 =
  15. 15.Half of 102 =
  16. 16.Double 17 =
  17. 17.Double 45 =
  18. 18.Half of 92 =
  19. 19.Half of 176 =
  20. 20.Double 41 =
  21. 21.Half of 194 =
  22. 22.Double 37 =
  23. 23.Half of 72 =
  24. 24.Double 76 =
  25. 25.Half of 16 =
  26. 26.Double 59 =
  27. 27.Half of 54 =
  28. 28.Half of 106 =
  29. 29.Double 54 =
  30. 30.Double 24 =
  31. 31.Half of 62 =
  32. 32.Half of 78 =
  33. 33.Half of 56 =
  34. 34.Half of 112 =
  35. 35.Half of 12 =
  36. 36.Half of 22 =
  37. 37.Double 82 =
  38. 38.Half of 142 =
  39. 39.Double 97 =
  40. 40.Double 87 =

Answer key

  1. 91
  2. 78
  3. 7
  4. 21
  5. 72
  6. 50
  7. 29
  8. 62
  9. 102
  10. 57
  11. 46
  12. 61
  13. 94
  14. 104
  15. 51
  16. 34
  17. 90
  18. 46
  19. 88
  20. 82
  21. 97
  22. 74
  23. 36
  24. 152
  25. 8
  26. 118
  27. 27
  28. 53
  29. 108
  30. 48
  31. 31
  32. 39
  33. 28
  34. 56
  35. 6
  36. 11
  37. 164
  38. 71
  39. 194
  40. 174

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