← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 872 · 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 39 =
  2. 2.Half of 72 =
  3. 3.Double 78 =
  4. 4.Double 61 =
  5. 5.Double 53 =
  6. 6.Double 16 =
  7. 7.Half of 174 =
  8. 8.Half of 38 =
  9. 9.Half of 32 =
  10. 10.Double 96 =
  11. 11.Double 52 =
  12. 12.Double 73 =
  13. 13.Double 25 =
  14. 14.Half of 34 =
  15. 15.Half of 36 =
  16. 16.Half of 102 =
  17. 17.Half of 122 =
  18. 18.Double 97 =
  19. 19.Double 24 =
  20. 20.Double 85 =
  21. 21.Double 37 =
  22. 22.Half of 16 =
  23. 23.Half of 112 =
  24. 24.Half of 196 =
  25. 25.Double 36 =
  26. 26.Double 51 =
  27. 27.Double 91 =
  28. 28.Double 56 =
  29. 29.Half of 96 =
  30. 30.Double 95 =
  31. 31.Half of 66 =
  32. 32.Double 71 =
  33. 33.Half of 14 =
  34. 34.Half of 24 =
  35. 35.Double 17 =
  36. 36.Half of 182 =
  37. 37.Half of 114 =
  38. 38.Double 12 =
  39. 39.Double 28 =
  40. 40.Double 89 =

Answer key

  1. 78
  2. 36
  3. 156
  4. 122
  5. 106
  6. 32
  7. 87
  8. 19
  9. 16
  10. 192
  11. 104
  12. 146
  13. 50
  14. 17
  15. 18
  16. 51
  17. 61
  18. 194
  19. 48
  20. 170
  21. 74
  22. 8
  23. 56
  24. 98
  25. 72
  26. 102
  27. 182
  28. 112
  29. 48
  30. 190
  31. 33
  32. 142
  33. 7
  34. 12
  35. 34
  36. 91
  37. 57
  38. 24
  39. 56
  40. 178

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