← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 298 · 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 25 =
  2. 2.Half of 72 =
  3. 3.Double 21 =
  4. 4.Half of 146 =
  5. 5.Half of 148 =
  6. 6.Half of 62 =
  7. 7.Double 58 =
  8. 8.Half of 114 =
  9. 9.Half of 34 =
  10. 10.Double 27 =
  11. 11.Double 16 =
  12. 12.Double 85 =
  13. 13.Half of 102 =
  14. 14.Double 43 =
  15. 15.Double 71 =
  16. 16.Half of 156 =
  17. 17.Double 31 =
  18. 18.Double 49 =
  19. 19.Double 41 =
  20. 20.Double 54 =
  21. 21.Half of 96 =
  22. 22.Half of 26 =
  23. 23.Half of 38 =
  24. 24.Double 52 =
  25. 25.Half of 76 =
  26. 26.Half of 66 =
  27. 27.Double 91 =
  28. 28.Double 39 =
  29. 29.Double 63 =
  30. 30.Half of 186 =
  31. 31.Double 67 =
  32. 32.Half of 132 =
  33. 33.Double 51 =
  34. 34.Half of 22 =
  35. 35.Half of 92 =
  36. 36.Double 76 =
  37. 37.Double 64 =
  38. 38.Half of 52 =
  39. 39.Half of 178 =
  40. 40.Half of 118 =

Answer key

  1. 50
  2. 36
  3. 42
  4. 73
  5. 74
  6. 31
  7. 116
  8. 57
  9. 17
  10. 54
  11. 32
  12. 170
  13. 51
  14. 86
  15. 142
  16. 78
  17. 62
  18. 98
  19. 82
  20. 108
  21. 48
  22. 13
  23. 19
  24. 104
  25. 38
  26. 33
  27. 182
  28. 78
  29. 126
  30. 93
  31. 134
  32. 66
  33. 102
  34. 11
  35. 46
  36. 152
  37. 128
  38. 26
  39. 89
  40. 59

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