← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 524 · 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 32 =
  2. 2.Half of 86 =
  3. 3.Half of 192 =
  4. 4.Double 75 =
  5. 5.Double 74 =
  6. 6.Double 36 =
  7. 7.Double 89 =
  8. 8.Double 53 =
  9. 9.Double 43 =
  10. 10.Double 55 =
  11. 11.Double 45 =
  12. 12.Double 18 =
  13. 13.Double 51 =
  14. 14.Double 37 =
  15. 15.Double 76 =
  16. 16.Double 35 =
  17. 17.Double 19 =
  18. 18.Half of 74 =
  19. 19.Double 64 =
  20. 20.Double 61 =
  21. 21.Half of 132 =
  22. 22.Half of 96 =
  23. 23.Double 85 =
  24. 24.Half of 114 =
  25. 25.Half of 72 =
  26. 26.Half of 54 =
  27. 27.Double 58 =
  28. 28.Half of 22 =
  29. 29.Half of 52 =
  30. 30.Half of 76 =
  31. 31.Half of 134 =
  32. 32.Double 21 =
  33. 33.Double 96 =
  34. 34.Half of 106 =
  35. 35.Half of 78 =
  36. 36.Half of 98 =
  37. 37.Half of 126 =
  38. 38.Half of 58 =
  39. 39.Half of 156 =
  40. 40.Double 87 =

Answer key

  1. 16
  2. 43
  3. 96
  4. 150
  5. 148
  6. 72
  7. 178
  8. 106
  9. 86
  10. 110
  11. 90
  12. 36
  13. 102
  14. 74
  15. 152
  16. 70
  17. 38
  18. 37
  19. 128
  20. 122
  21. 66
  22. 48
  23. 170
  24. 57
  25. 36
  26. 27
  27. 116
  28. 11
  29. 26
  30. 38
  31. 67
  32. 42
  33. 192
  34. 53
  35. 39
  36. 49
  37. 63
  38. 29
  39. 78
  40. 174

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