← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 300 · 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 138 =
  2. 2.Half of 116 =
  3. 3.Half of 32 =
  4. 4.Half of 26 =
  5. 5.Double 27 =
  6. 6.Half of 106 =
  7. 7.Double 85 =
  8. 8.Double 29 =
  9. 9.Double 92 =
  10. 10.Half of 92 =
  11. 11.Double 18 =
  12. 12.Half of 24 =
  13. 13.Half of 22 =
  14. 14.Half of 196 =
  15. 15.Half of 54 =
  16. 16.Half of 102 =
  17. 17.Double 24 =
  18. 18.Half of 68 =
  19. 19.Half of 166 =
  20. 20.Half of 52 =
  21. 21.Half of 96 =
  22. 22.Double 67 =
  23. 23.Double 87 =
  24. 24.Double 58 =
  25. 25.Double 72 =
  26. 26.Double 48 =
  27. 27.Double 56 =
  28. 28.Half of 82 =
  29. 29.Double 55 =
  30. 30.Half of 192 =
  31. 31.Double 62 =
  32. 32.Half of 42 =
  33. 33.Double 13 =
  34. 34.Double 31 =
  35. 35.Half of 62 =
  36. 36.Double 49 =
  37. 37.Half of 112 =
  38. 38.Double 99 =
  39. 39.Double 71 =
  40. 40.Half of 168 =

Answer key

  1. 69
  2. 58
  3. 16
  4. 13
  5. 54
  6. 53
  7. 170
  8. 58
  9. 184
  10. 46
  11. 36
  12. 12
  13. 11
  14. 98
  15. 27
  16. 51
  17. 48
  18. 34
  19. 83
  20. 26
  21. 48
  22. 134
  23. 174
  24. 116
  25. 144
  26. 96
  27. 112
  28. 41
  29. 110
  30. 96
  31. 124
  32. 21
  33. 26
  34. 62
  35. 31
  36. 98
  37. 56
  38. 198
  39. 142
  40. 84

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