← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 196 · 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.Double 25 =
  2. 2.Half of 112 =
  3. 3.Half of 174 =
  4. 4.Half of 72 =
  5. 5.Double 22 =
  6. 6.Half of 42 =
  7. 7.Double 14 =
  8. 8.Half of 12 =
  9. 9.Half of 134 =
  10. 10.Double 19 =
  11. 11.Double 91 =
  12. 12.Double 16 =
  13. 13.Half of 172 =
  14. 14.Half of 102 =
  15. 15.Double 83 =
  16. 16.Double 82 =
  17. 17.Double 28 =
  18. 18.Half of 64 =
  19. 19.Double 87 =
  20. 20.Half of 142 =
  21. 21.Half of 182 =
  22. 22.Double 95 =
  23. 23.Double 99 =
  24. 24.Half of 22 =
  25. 25.Half of 16 =
  26. 26.Half of 52 =
  27. 27.Half of 24 =
  28. 28.Double 26 =
  29. 29.Double 65 =
  30. 30.Half of 166 =
  31. 31.Double 96 =
  32. 32.Double 31 =
  33. 33.Double 84 =
  34. 34.Half of 168 =
  35. 35.Double 21 =
  36. 36.Double 51 =
  37. 37.Double 57 =
  38. 38.Double 62 =
  39. 39.Double 34 =
  40. 40.Half of 48 =

Answer key

  1. 50
  2. 56
  3. 87
  4. 36
  5. 44
  6. 21
  7. 28
  8. 6
  9. 67
  10. 38
  11. 182
  12. 32
  13. 86
  14. 51
  15. 166
  16. 164
  17. 56
  18. 32
  19. 174
  20. 71
  21. 91
  22. 190
  23. 198
  24. 11
  25. 8
  26. 26
  27. 12
  28. 52
  29. 130
  30. 83
  31. 192
  32. 62
  33. 168
  34. 84
  35. 42
  36. 102
  37. 114
  38. 124
  39. 68
  40. 24

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