← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 634 · 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 38 =
  2. 2.Half of 68 =
  3. 3.Half of 48 =
  4. 4.Half of 54 =
  5. 5.Half of 42 =
  6. 6.Half of 18 =
  7. 7.Double 19 =
  8. 8.Double 78 =
  9. 9.Half of 118 =
  10. 10.Double 95 =
  11. 11.Double 26 =
  12. 12.Half of 188 =
  13. 13.Half of 196 =
  14. 14.Half of 26 =
  15. 15.Double 29 =
  16. 16.Half of 72 =
  17. 17.Half of 174 =
  18. 18.Double 48 =
  19. 19.Half of 192 =
  20. 20.Half of 136 =
  21. 21.Double 27 =
  22. 22.Double 15 =
  23. 23.Double 36 =
  24. 24.Double 51 =
  25. 25.Half of 182 =
  26. 26.Double 69 =
  27. 27.Half of 24 =
  28. 28.Half of 152 =
  29. 29.Double 41 =
  30. 30.Half of 16 =
  31. 31.Double 87 =
  32. 32.Double 63 =
  33. 33.Half of 98 =
  34. 34.Half of 22 =
  35. 35.Half of 82 =
  36. 36.Double 56 =
  37. 37.Double 25 =
  38. 38.Half of 28 =
  39. 39.Half of 108 =
  40. 40.Double 24 =

Answer key

  1. 19
  2. 34
  3. 24
  4. 27
  5. 21
  6. 9
  7. 38
  8. 156
  9. 59
  10. 190
  11. 52
  12. 94
  13. 98
  14. 13
  15. 58
  16. 36
  17. 87
  18. 96
  19. 96
  20. 68
  21. 54
  22. 30
  23. 72
  24. 102
  25. 91
  26. 138
  27. 12
  28. 76
  29. 82
  30. 8
  31. 174
  32. 126
  33. 49
  34. 11
  35. 41
  36. 112
  37. 50
  38. 14
  39. 54
  40. 48

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