← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 126 · 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 71 =
  3. 3.Double 89 =
  4. 4.Double 73 =
  5. 5.Half of 22 =
  6. 6.Half of 16 =
  7. 7.Half of 32 =
  8. 8.Half of 66 =
  9. 9.Double 69 =
  10. 10.Double 51 =
  11. 11.Double 74 =
  12. 12.Double 76 =
  13. 13.Half of 18 =
  14. 14.Half of 186 =
  15. 15.Half of 82 =
  16. 16.Half of 152 =
  17. 17.Half of 112 =
  18. 18.Double 18 =
  19. 19.Half of 72 =
  20. 20.Half of 184 =
  21. 21.Half of 166 =
  22. 22.Half of 24 =
  23. 23.Double 58 =
  24. 24.Double 12 =
  25. 25.Half of 86 =
  26. 26.Half of 192 =
  27. 27.Half of 194 =
  28. 28.Double 46 =
  29. 29.Half of 62 =
  30. 30.Double 37 =
  31. 31.Double 26 =
  32. 32.Half of 156 =
  33. 33.Half of 74 =
  34. 34.Half of 136 =
  35. 35.Double 65 =
  36. 36.Double 49 =
  37. 37.Double 29 =
  38. 38.Double 95 =
  39. 39.Half of 124 =
  40. 40.Half of 52 =

Answer key

  1. 49
  2. 142
  3. 178
  4. 146
  5. 11
  6. 8
  7. 16
  8. 33
  9. 138
  10. 102
  11. 148
  12. 152
  13. 9
  14. 93
  15. 41
  16. 76
  17. 56
  18. 36
  19. 36
  20. 92
  21. 83
  22. 12
  23. 116
  24. 24
  25. 43
  26. 96
  27. 97
  28. 92
  29. 31
  30. 74
  31. 52
  32. 78
  33. 37
  34. 68
  35. 130
  36. 98
  37. 58
  38. 190
  39. 62
  40. 26

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