← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 111 · 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 46 =
  2. 2.Double 91 =
  3. 3.Half of 186 =
  4. 4.Double 48 =
  5. 5.Half of 112 =
  6. 6.Double 67 =
  7. 7.Half of 32 =
  8. 8.Half of 106 =
  9. 9.Double 94 =
  10. 10.Double 86 =
  11. 11.Half of 52 =
  12. 12.Half of 42 =
  13. 13.Double 21 =
  14. 14.Half of 72 =
  15. 15.Double 27 =
  16. 16.Double 54 =
  17. 17.Double 31 =
  18. 18.Half of 188 =
  19. 19.Half of 172 =
  20. 20.Half of 36 =
  21. 21.Double 41 =
  22. 22.Double 65 =
  23. 23.Double 19 =
  24. 24.Double 51 =
  25. 25.Double 95 =
  26. 26.Half of 12 =
  27. 27.Half of 34 =
  28. 28.Half of 18 =
  29. 29.Double 99 =
  30. 30.Double 87 =
  31. 31.Half of 148 =
  32. 32.Double 23 =
  33. 33.Double 93 =
  34. 34.Double 49 =
  35. 35.Double 61 =
  36. 36.Half of 192 =
  37. 37.Double 38 =
  38. 38.Half of 76 =
  39. 39.Half of 54 =
  40. 40.Half of 114 =

Answer key

  1. 23
  2. 182
  3. 93
  4. 96
  5. 56
  6. 134
  7. 16
  8. 53
  9. 188
  10. 172
  11. 26
  12. 21
  13. 42
  14. 36
  15. 54
  16. 108
  17. 62
  18. 94
  19. 86
  20. 18
  21. 82
  22. 130
  23. 38
  24. 102
  25. 190
  26. 6
  27. 17
  28. 9
  29. 198
  30. 174
  31. 74
  32. 46
  33. 186
  34. 98
  35. 122
  36. 96
  37. 76
  38. 38
  39. 27
  40. 57

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