← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 663 · 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 166 =
  2. 2.Double 86 =
  3. 3.Half of 172 =
  4. 4.Double 61 =
  5. 5.Double 79 =
  6. 6.Half of 158 =
  7. 7.Double 65 =
  8. 8.Half of 58 =
  9. 9.Half of 114 =
  10. 10.Double 62 =
  11. 11.Double 34 =
  12. 12.Double 95 =
  13. 13.Double 58 =
  14. 14.Half of 16 =
  15. 15.Half of 132 =
  16. 16.Half of 94 =
  17. 17.Half of 36 =
  18. 18.Double 47 =
  19. 19.Half of 12 =
  20. 20.Half of 72 =
  21. 21.Half of 22 =
  22. 22.Half of 46 =
  23. 23.Half of 48 =
  24. 24.Half of 54 =
  25. 25.Half of 176 =
  26. 26.Half of 88 =
  27. 27.Double 98 =
  28. 28.Double 21 =
  29. 29.Half of 42 =
  30. 30.Half of 192 =
  31. 31.Double 85 =
  32. 32.Half of 168 =
  33. 33.Half of 102 =
  34. 34.Double 81 =
  35. 35.Double 91 =
  36. 36.Double 76 =
  37. 37.Half of 14 =
  38. 38.Double 26 =
  39. 39.Half of 92 =
  40. 40.Double 18 =

Answer key

  1. 83
  2. 172
  3. 86
  4. 122
  5. 158
  6. 79
  7. 130
  8. 29
  9. 57
  10. 124
  11. 68
  12. 190
  13. 116
  14. 8
  15. 66
  16. 47
  17. 18
  18. 94
  19. 6
  20. 36
  21. 11
  22. 23
  23. 24
  24. 27
  25. 88
  26. 44
  27. 196
  28. 42
  29. 21
  30. 96
  31. 170
  32. 84
  33. 51
  34. 162
  35. 182
  36. 152
  37. 7
  38. 52
  39. 46
  40. 36

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