← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 302 · 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 52 =
  2. 2.Double 99 =
  3. 3.Double 36 =
  4. 4.Double 59 =
  5. 5.Half of 16 =
  6. 6.Half of 92 =
  7. 7.Double 22 =
  8. 8.Half of 72 =
  9. 9.Double 68 =
  10. 10.Double 85 =
  11. 11.Double 31 =
  12. 12.Half of 96 =
  13. 13.Double 18 =
  14. 14.Double 52 =
  15. 15.Double 67 =
  16. 16.Half of 152 =
  17. 17.Double 48 =
  18. 18.Double 47 =
  19. 19.Double 46 =
  20. 20.Half of 78 =
  21. 21.Half of 166 =
  22. 22.Half of 64 =
  23. 23.Half of 68 =
  24. 24.Half of 44 =
  25. 25.Double 14 =
  26. 26.Double 23 =
  27. 27.Double 86 =
  28. 28.Half of 32 =
  29. 29.Half of 182 =
  30. 30.Half of 114 =
  31. 31.Double 69 =
  32. 32.Half of 194 =
  33. 33.Double 72 =
  34. 34.Double 91 =
  35. 35.Double 25 =
  36. 36.Double 51 =
  37. 37.Double 98 =
  38. 38.Double 26 =
  39. 39.Double 55 =
  40. 40.Double 93 =

Answer key

  1. 26
  2. 198
  3. 72
  4. 118
  5. 8
  6. 46
  7. 44
  8. 36
  9. 136
  10. 170
  11. 62
  12. 48
  13. 36
  14. 104
  15. 134
  16. 76
  17. 96
  18. 94
  19. 92
  20. 39
  21. 83
  22. 32
  23. 34
  24. 22
  25. 28
  26. 46
  27. 172
  28. 16
  29. 91
  30. 57
  31. 138
  32. 97
  33. 144
  34. 182
  35. 50
  36. 102
  37. 196
  38. 52
  39. 110
  40. 186

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