← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 829 · 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 98 =
  2. 2.Double 46 =
  3. 3.Half of 196 =
  4. 4.Half of 56 =
  5. 5.Double 38 =
  6. 6.Half of 82 =
  7. 7.Half of 174 =
  8. 8.Half of 38 =
  9. 9.Double 76 =
  10. 10.Double 57 =
  11. 11.Double 52 =
  12. 12.Double 95 =
  13. 13.Half of 26 =
  14. 14.Double 27 =
  15. 15.Double 75 =
  16. 16.Half of 144 =
  17. 17.Double 61 =
  18. 18.Half of 132 =
  19. 19.Half of 36 =
  20. 20.Double 29 =
  21. 21.Half of 192 =
  22. 22.Double 37 =
  23. 23.Double 43 =
  24. 24.Double 17 =
  25. 25.Half of 136 =
  26. 26.Half of 62 =
  27. 27.Double 84 =
  28. 28.Double 18 =
  29. 29.Half of 124 =
  30. 30.Half of 64 =
  31. 31.Double 48 =
  32. 32.Half of 122 =
  33. 33.Half of 14 =
  34. 34.Double 99 =
  35. 35.Double 19 =
  36. 36.Half of 154 =
  37. 37.Double 81 =
  38. 38.Half of 102 =
  39. 39.Half of 32 =
  40. 40.Half of 182 =

Answer key

  1. 49
  2. 92
  3. 98
  4. 28
  5. 76
  6. 41
  7. 87
  8. 19
  9. 152
  10. 114
  11. 104
  12. 190
  13. 13
  14. 54
  15. 150
  16. 72
  17. 122
  18. 66
  19. 18
  20. 58
  21. 96
  22. 74
  23. 86
  24. 34
  25. 68
  26. 31
  27. 168
  28. 36
  29. 62
  30. 32
  31. 96
  32. 61
  33. 7
  34. 198
  35. 38
  36. 77
  37. 162
  38. 51
  39. 16
  40. 91

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