← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 748 · 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 124 =
  2. 2.Half of 42 =
  3. 3.Half of 96 =
  4. 4.Half of 184 =
  5. 5.Double 13 =
  6. 6.Half of 114 =
  7. 7.Half of 46 =
  8. 8.Half of 52 =
  9. 9.Double 52 =
  10. 10.Double 97 =
  11. 11.Half of 16 =
  12. 12.Half of 48 =
  13. 13.Double 36 =
  14. 14.Double 38 =
  15. 15.Double 31 =
  16. 16.Double 73 =
  17. 17.Double 41 =
  18. 18.Double 85 =
  19. 19.Double 51 =
  20. 20.Double 94 =
  21. 21.Double 35 =
  22. 22.Half of 188 =
  23. 23.Half of 142 =
  24. 24.Half of 74 =
  25. 25.Half of 182 =
  26. 26.Double 81 =
  27. 27.Half of 116 =
  28. 28.Double 18 =
  29. 29.Half of 152 =
  30. 30.Double 62 =
  31. 31.Half of 192 =
  32. 32.Double 63 =
  33. 33.Double 39 =
  34. 34.Half of 138 =
  35. 35.Half of 118 =
  36. 36.Double 49 =
  37. 37.Double 16 =
  38. 38.Double 37 =
  39. 39.Half of 102 =
  40. 40.Half of 108 =

Answer key

  1. 62
  2. 21
  3. 48
  4. 92
  5. 26
  6. 57
  7. 23
  8. 26
  9. 104
  10. 194
  11. 8
  12. 24
  13. 72
  14. 76
  15. 62
  16. 146
  17. 82
  18. 170
  19. 102
  20. 188
  21. 70
  22. 94
  23. 71
  24. 37
  25. 91
  26. 162
  27. 58
  28. 36
  29. 76
  30. 124
  31. 96
  32. 126
  33. 78
  34. 69
  35. 59
  36. 98
  37. 32
  38. 74
  39. 51
  40. 54

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