← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 902 · 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 116 =
  2. 2.Double 85 =
  3. 3.Half of 146 =
  4. 4.Double 72 =
  5. 5.Half of 44 =
  6. 6.Half of 138 =
  7. 7.Half of 182 =
  8. 8.Double 59 =
  9. 9.Half of 22 =
  10. 10.Half of 56 =
  11. 11.Double 34 =
  12. 12.Half of 32 =
  13. 13.Half of 122 =
  14. 14.Double 67 =
  15. 15.Double 29 =
  16. 16.Double 45 =
  17. 17.Double 51 =
  18. 18.Double 48 =
  19. 19.Double 91 =
  20. 20.Double 28 =
  21. 21.Double 74 =
  22. 22.Half of 84 =
  23. 23.Double 21 =
  24. 24.Half of 48 =
  25. 25.Half of 148 =
  26. 26.Double 14 =
  27. 27.Half of 112 =
  28. 28.Double 22 =
  29. 29.Half of 194 =
  30. 30.Double 77 =
  31. 31.Double 24 =
  32. 32.Half of 126 =
  33. 33.Double 25 =
  34. 34.Double 97 =
  35. 35.Double 92 =
  36. 36.Double 47 =
  37. 37.Double 81 =
  38. 38.Half of 72 =
  39. 39.Double 11 =
  40. 40.Double 31 =

Answer key

  1. 58
  2. 170
  3. 73
  4. 144
  5. 22
  6. 69
  7. 91
  8. 118
  9. 11
  10. 28
  11. 68
  12. 16
  13. 61
  14. 134
  15. 58
  16. 90
  17. 102
  18. 96
  19. 182
  20. 56
  21. 148
  22. 42
  23. 42
  24. 24
  25. 74
  26. 28
  27. 56
  28. 44
  29. 97
  30. 154
  31. 48
  32. 63
  33. 50
  34. 194
  35. 184
  36. 94
  37. 162
  38. 36
  39. 22
  40. 62

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