← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 965 · 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 38 =
  2. 2.Half of 48 =
  3. 3.Double 71 =
  4. 4.Double 43 =
  5. 5.Double 77 =
  6. 6.Double 84 =
  7. 7.Half of 136 =
  8. 8.Half of 16 =
  9. 9.Half of 32 =
  10. 10.Half of 172 =
  11. 11.Half of 78 =
  12. 12.Half of 176 =
  13. 13.Half of 152 =
  14. 14.Half of 62 =
  15. 15.Half of 178 =
  16. 16.Half of 52 =
  17. 17.Half of 116 =
  18. 18.Double 57 =
  19. 19.Half of 24 =
  20. 20.Double 53 =
  21. 21.Double 25 =
  22. 22.Half of 166 =
  23. 23.Double 32 =
  24. 24.Double 98 =
  25. 25.Half of 98 =
  26. 26.Half of 84 =
  27. 27.Double 15 =
  28. 28.Double 41 =
  29. 29.Double 91 =
  30. 30.Half of 96 =
  31. 31.Half of 86 =
  32. 32.Double 93 =
  33. 33.Half of 64 =
  34. 34.Half of 122 =
  35. 35.Half of 132 =
  36. 36.Double 56 =
  37. 37.Half of 198 =
  38. 38.Half of 188 =
  39. 39.Double 31 =
  40. 40.Half of 146 =

Answer key

  1. 76
  2. 24
  3. 142
  4. 86
  5. 154
  6. 168
  7. 68
  8. 8
  9. 16
  10. 86
  11. 39
  12. 88
  13. 76
  14. 31
  15. 89
  16. 26
  17. 58
  18. 114
  19. 12
  20. 106
  21. 50
  22. 83
  23. 64
  24. 196
  25. 49
  26. 42
  27. 30
  28. 82
  29. 182
  30. 48
  31. 43
  32. 186
  33. 32
  34. 61
  35. 66
  36. 112
  37. 99
  38. 94
  39. 62
  40. 73

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