← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 597 · 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 12 =
  2. 2.Half of 86 =
  3. 3.Double 92 =
  4. 4.Double 91 =
  5. 5.Double 49 =
  6. 6.Double 32 =
  7. 7.Half of 184 =
  8. 8.Double 65 =
  9. 9.Half of 54 =
  10. 10.Half of 172 =
  11. 11.Double 15 =
  12. 12.Half of 46 =
  13. 13.Double 26 =
  14. 14.Half of 28 =
  15. 15.Half of 98 =
  16. 16.Half of 14 =
  17. 17.Half of 168 =
  18. 18.Half of 44 =
  19. 19.Double 53 =
  20. 20.Half of 124 =
  21. 21.Double 81 =
  22. 22.Half of 152 =
  23. 23.Half of 174 =
  24. 24.Half of 78 =
  25. 25.Double 69 =
  26. 26.Half of 64 =
  27. 27.Half of 48 =
  28. 28.Half of 18 =
  29. 29.Double 24 =
  30. 30.Half of 126 =
  31. 31.Double 35 =
  32. 32.Half of 194 =
  33. 33.Half of 146 =
  34. 34.Double 52 =
  35. 35.Double 25 =
  36. 36.Half of 118 =
  37. 37.Double 38 =
  38. 38.Double 76 =
  39. 39.Double 79 =
  40. 40.Double 36 =

Answer key

  1. 24
  2. 43
  3. 184
  4. 182
  5. 98
  6. 64
  7. 92
  8. 130
  9. 27
  10. 86
  11. 30
  12. 23
  13. 52
  14. 14
  15. 49
  16. 7
  17. 84
  18. 22
  19. 106
  20. 62
  21. 162
  22. 76
  23. 87
  24. 39
  25. 138
  26. 32
  27. 24
  28. 9
  29. 48
  30. 63
  31. 70
  32. 97
  33. 73
  34. 104
  35. 50
  36. 59
  37. 76
  38. 152
  39. 158
  40. 72

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