← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 266 · 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 86 =
  2. 2.Half of 148 =
  3. 3.Double 27 =
  4. 4.Half of 152 =
  5. 5.Double 72 =
  6. 6.Double 88 =
  7. 7.Half of 14 =
  8. 8.Double 42 =
  9. 9.Double 23 =
  10. 10.Double 41 =
  11. 11.Half of 192 =
  12. 12.Half of 166 =
  13. 13.Double 62 =
  14. 14.Double 12 =
  15. 15.Double 58 =
  16. 16.Half of 84 =
  17. 17.Half of 28 =
  18. 18.Half of 156 =
  19. 19.Double 78 =
  20. 20.Half of 62 =
  21. 21.Double 75 =
  22. 22.Double 31 =
  23. 23.Double 96 =
  24. 24.Half of 132 =
  25. 25.Double 74 =
  26. 26.Half of 146 =
  27. 27.Half of 174 =
  28. 28.Half of 182 =
  29. 29.Half of 98 =
  30. 30.Double 55 =
  31. 31.Double 82 =
  32. 32.Double 18 =
  33. 33.Half of 168 =
  34. 34.Half of 18 =
  35. 35.Double 34 =
  36. 36.Half of 194 =
  37. 37.Half of 114 =
  38. 38.Double 79 =
  39. 39.Half of 52 =
  40. 40.Double 66 =

Answer key

  1. 43
  2. 74
  3. 54
  4. 76
  5. 144
  6. 176
  7. 7
  8. 84
  9. 46
  10. 82
  11. 96
  12. 83
  13. 124
  14. 24
  15. 116
  16. 42
  17. 14
  18. 78
  19. 156
  20. 31
  21. 150
  22. 62
  23. 192
  24. 66
  25. 148
  26. 73
  27. 87
  28. 91
  29. 49
  30. 110
  31. 164
  32. 36
  33. 84
  34. 9
  35. 68
  36. 97
  37. 57
  38. 158
  39. 26
  40. 132

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