← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 971 · 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 108 =
  2. 2.Double 73 =
  3. 3.Double 29 =
  4. 4.Double 35 =
  5. 5.Half of 36 =
  6. 6.Double 51 =
  7. 7.Double 45 =
  8. 8.Half of 12 =
  9. 9.Half of 66 =
  10. 10.Double 34 =
  11. 11.Half of 174 =
  12. 12.Half of 42 =
  13. 13.Half of 32 =
  14. 14.Double 25 =
  15. 15.Double 22 =
  16. 16.Half of 192 =
  17. 17.Double 92 =
  18. 18.Double 27 =
  19. 19.Half of 58 =
  20. 20.Double 76 =
  21. 21.Double 26 =
  22. 22.Double 72 =
  23. 23.Half of 64 =
  24. 24.Half of 102 =
  25. 25.Double 77 =
  26. 26.Half of 72 =
  27. 27.Half of 16 =
  28. 28.Double 63 =
  29. 29.Double 28 =
  30. 30.Double 15 =
  31. 31.Double 44 =
  32. 32.Double 95 =
  33. 33.Double 55 =
  34. 34.Half of 194 =
  35. 35.Half of 126 =
  36. 36.Half of 82 =
  37. 37.Double 97 =
  38. 38.Half of 178 =
  39. 39.Double 94 =
  40. 40.Half of 62 =

Answer key

  1. 54
  2. 146
  3. 58
  4. 70
  5. 18
  6. 102
  7. 90
  8. 6
  9. 33
  10. 68
  11. 87
  12. 21
  13. 16
  14. 50
  15. 44
  16. 96
  17. 184
  18. 54
  19. 29
  20. 152
  21. 52
  22. 144
  23. 32
  24. 51
  25. 154
  26. 36
  27. 8
  28. 126
  29. 56
  30. 30
  31. 88
  32. 190
  33. 110
  34. 97
  35. 63
  36. 41
  37. 194
  38. 89
  39. 188
  40. 31

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