← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 877 · 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 96 =
  2. 2.Half of 94 =
  3. 3.Double 85 =
  4. 4.Double 41 =
  5. 5.Half of 38 =
  6. 6.Double 24 =
  7. 7.Half of 184 =
  8. 8.Half of 132 =
  9. 9.Half of 112 =
  10. 10.Double 59 =
  11. 11.Double 13 =
  12. 12.Half of 32 =
  13. 13.Half of 58 =
  14. 14.Double 99 =
  15. 15.Double 91 =
  16. 16.Half of 108 =
  17. 17.Half of 16 =
  18. 18.Half of 84 =
  19. 19.Half of 14 =
  20. 20.Double 25 =
  21. 21.Half of 174 =
  22. 22.Half of 52 =
  23. 23.Double 92 =
  24. 24.Double 51 =
  25. 25.Double 65 =
  26. 26.Half of 116 =
  27. 27.Double 27 =
  28. 28.Double 57 =
  29. 29.Double 77 =
  30. 30.Double 31 =
  31. 31.Half of 194 =
  32. 32.Double 21 =
  33. 33.Double 12 =
  34. 34.Double 61 =
  35. 35.Double 67 =
  36. 36.Half of 158 =
  37. 37.Double 42 =
  38. 38.Half of 128 =
  39. 39.Double 53 =
  40. 40.Half of 182 =

Answer key

  1. 48
  2. 47
  3. 170
  4. 82
  5. 19
  6. 48
  7. 92
  8. 66
  9. 56
  10. 118
  11. 26
  12. 16
  13. 29
  14. 198
  15. 182
  16. 54
  17. 8
  18. 42
  19. 7
  20. 50
  21. 87
  22. 26
  23. 184
  24. 102
  25. 130
  26. 58
  27. 54
  28. 114
  29. 154
  30. 62
  31. 97
  32. 42
  33. 24
  34. 122
  35. 134
  36. 79
  37. 84
  38. 64
  39. 106
  40. 91

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