← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 439 · 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 32 =
  2. 2.Double 94 =
  3. 3.Double 27 =
  4. 4.Half of 22 =
  5. 5.Double 22 =
  6. 6.Double 68 =
  7. 7.Half of 112 =
  8. 8.Half of 88 =
  9. 9.Half of 82 =
  10. 10.Half of 146 =
  11. 11.Double 97 =
  12. 12.Half of 62 =
  13. 13.Half of 106 =
  14. 14.Half of 58 =
  15. 15.Half of 186 =
  16. 16.Double 37 =
  17. 17.Double 88 =
  18. 18.Half of 38 =
  19. 19.Double 41 =
  20. 20.Half of 28 =
  21. 21.Half of 94 =
  22. 22.Double 78 =
  23. 23.Double 86 =
  24. 24.Half of 108 =
  25. 25.Double 75 =
  26. 26.Half of 86 =
  27. 27.Half of 12 =
  28. 28.Half of 152 =
  29. 29.Double 83 =
  30. 30.Half of 196 =
  31. 31.Double 17 =
  32. 32.Double 63 =
  33. 33.Double 45 =
  34. 34.Half of 18 =
  35. 35.Double 99 =
  36. 36.Double 91 =
  37. 37.Half of 158 =
  38. 38.Half of 92 =
  39. 39.Double 43 =
  40. 40.Double 81 =

Answer key

  1. 16
  2. 188
  3. 54
  4. 11
  5. 44
  6. 136
  7. 56
  8. 44
  9. 41
  10. 73
  11. 194
  12. 31
  13. 53
  14. 29
  15. 93
  16. 74
  17. 176
  18. 19
  19. 82
  20. 14
  21. 47
  22. 156
  23. 172
  24. 54
  25. 150
  26. 43
  27. 6
  28. 76
  29. 166
  30. 98
  31. 34
  32. 126
  33. 90
  34. 9
  35. 198
  36. 182
  37. 79
  38. 46
  39. 86
  40. 162

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