← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 487 · 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 72 =
  2. 2.Half of 134 =
  3. 3.Half of 126 =
  4. 4.Double 91 =
  5. 5.Half of 132 =
  6. 6.Half of 64 =
  7. 7.Double 36 =
  8. 8.Double 73 =
  9. 9.Double 68 =
  10. 10.Double 31 =
  11. 11.Double 13 =
  12. 12.Double 56 =
  13. 13.Half of 88 =
  14. 14.Double 43 =
  15. 15.Double 61 =
  16. 16.Double 67 =
  17. 17.Half of 116 =
  18. 18.Half of 56 =
  19. 19.Half of 154 =
  20. 20.Half of 16 =
  21. 21.Double 38 =
  22. 22.Double 47 =
  23. 23.Double 59 =
  24. 24.Double 62 =
  25. 25.Half of 36 =
  26. 26.Half of 178 =
  27. 27.Double 29 =
  28. 28.Half of 166 =
  29. 29.Half of 32 =
  30. 30.Double 51 =
  31. 31.Double 85 =
  32. 32.Double 17 =
  33. 33.Half of 44 =
  34. 34.Half of 28 =
  35. 35.Double 12 =
  36. 36.Double 53 =
  37. 37.Double 32 =
  38. 38.Half of 22 =
  39. 39.Half of 12 =
  40. 40.Double 97 =

Answer key

  1. 144
  2. 67
  3. 63
  4. 182
  5. 66
  6. 32
  7. 72
  8. 146
  9. 136
  10. 62
  11. 26
  12. 112
  13. 44
  14. 86
  15. 122
  16. 134
  17. 58
  18. 28
  19. 77
  20. 8
  21. 76
  22. 94
  23. 118
  24. 124
  25. 18
  26. 89
  27. 58
  28. 83
  29. 16
  30. 102
  31. 170
  32. 34
  33. 22
  34. 14
  35. 24
  36. 106
  37. 64
  38. 11
  39. 6
  40. 194

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