← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 465 · 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 29 =
  2. 2.Double 86 =
  3. 3.Double 54 =
  4. 4.Half of 164 =
  5. 5.Half of 136 =
  6. 6.Half of 36 =
  7. 7.Half of 156 =
  8. 8.Half of 174 =
  9. 9.Half of 88 =
  10. 10.Double 75 =
  11. 11.Double 37 =
  12. 12.Double 18 =
  13. 13.Double 64 =
  14. 14.Half of 66 =
  15. 15.Double 78 =
  16. 16.Double 21 =
  17. 17.Half of 196 =
  18. 18.Double 58 =
  19. 19.Half of 74 =
  20. 20.Half of 168 =
  21. 21.Half of 76 =
  22. 22.Half of 22 =
  23. 23.Double 36 =
  24. 24.Half of 162 =
  25. 25.Half of 42 =
  26. 26.Double 52 =
  27. 27.Double 33 =
  28. 28.Double 55 =
  29. 29.Double 85 =
  30. 30.Half of 122 =
  31. 31.Half of 176 =
  32. 32.Double 27 =
  33. 33.Half of 104 =
  34. 34.Double 69 =
  35. 35.Double 46 =
  36. 36.Double 38 =
  37. 37.Half of 158 =
  38. 38.Half of 52 =
  39. 39.Double 41 =
  40. 40.Double 68 =

Answer key

  1. 58
  2. 172
  3. 108
  4. 82
  5. 68
  6. 18
  7. 78
  8. 87
  9. 44
  10. 150
  11. 74
  12. 36
  13. 128
  14. 33
  15. 156
  16. 42
  17. 98
  18. 116
  19. 37
  20. 84
  21. 38
  22. 11
  23. 72
  24. 81
  25. 21
  26. 104
  27. 66
  28. 110
  29. 170
  30. 61
  31. 88
  32. 54
  33. 52
  34. 138
  35. 92
  36. 76
  37. 79
  38. 26
  39. 82
  40. 136

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