← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 198 · 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 13 =
  2. 2.Half of 154 =
  3. 3.Double 73 =
  4. 4.Double 77 =
  5. 5.Double 74 =
  6. 6.Half of 24 =
  7. 7.Double 28 =
  8. 8.Double 88 =
  9. 9.Double 12 =
  10. 10.Double 54 =
  11. 11.Half of 42 =
  12. 12.Half of 178 =
  13. 13.Half of 92 =
  14. 14.Half of 122 =
  15. 15.Half of 134 =
  16. 16.Half of 46 =
  17. 17.Double 61 =
  18. 18.Double 16 =
  19. 19.Double 19 =
  20. 20.Double 18 =
  21. 21.Double 22 =
  22. 22.Double 42 =
  23. 23.Half of 66 =
  24. 24.Double 67 =
  25. 25.Half of 174 =
  26. 26.Double 46 =
  27. 27.Half of 38 =
  28. 28.Half of 188 =
  29. 29.Double 17 =
  30. 30.Half of 52 =
  31. 31.Half of 36 =
  32. 32.Half of 172 =
  33. 33.Half of 18 =
  34. 34.Half of 94 =
  35. 35.Double 66 =
  36. 36.Half of 102 =
  37. 37.Half of 76 =
  38. 38.Half of 62 =
  39. 39.Double 48 =
  40. 40.Half of 108 =

Answer key

  1. 26
  2. 77
  3. 146
  4. 154
  5. 148
  6. 12
  7. 56
  8. 176
  9. 24
  10. 108
  11. 21
  12. 89
  13. 46
  14. 61
  15. 67
  16. 23
  17. 122
  18. 32
  19. 38
  20. 36
  21. 44
  22. 84
  23. 33
  24. 134
  25. 87
  26. 92
  27. 19
  28. 94
  29. 34
  30. 26
  31. 18
  32. 86
  33. 9
  34. 47
  35. 132
  36. 51
  37. 38
  38. 31
  39. 96
  40. 54

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