← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 380 · 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 78 =
  2. 2.Half of 82 =
  3. 3.Half of 62 =
  4. 4.Half of 66 =
  5. 5.Half of 92 =
  6. 6.Half of 182 =
  7. 7.Double 87 =
  8. 8.Double 45 =
  9. 9.Half of 72 =
  10. 10.Double 54 =
  11. 11.Double 37 =
  12. 12.Half of 142 =
  13. 13.Double 12 =
  14. 14.Half of 36 =
  15. 15.Double 24 =
  16. 16.Double 32 =
  17. 17.Half of 116 =
  18. 18.Double 92 =
  19. 19.Double 94 =
  20. 20.Double 61 =
  21. 21.Double 29 =
  22. 22.Half of 118 =
  23. 23.Half of 132 =
  24. 24.Double 27 =
  25. 25.Double 81 =
  26. 26.Double 15 =
  27. 27.Double 22 =
  28. 28.Double 98 =
  29. 29.Half of 34 =
  30. 30.Double 21 =
  31. 31.Double 72 =
  32. 32.Half of 176 =
  33. 33.Double 66 =
  34. 34.Double 76 =
  35. 35.Double 23 =
  36. 36.Double 86 =
  37. 37.Double 78 =
  38. 38.Double 42 =
  39. 39.Half of 86 =
  40. 40.Half of 26 =

Answer key

  1. 39
  2. 41
  3. 31
  4. 33
  5. 46
  6. 91
  7. 174
  8. 90
  9. 36
  10. 108
  11. 74
  12. 71
  13. 24
  14. 18
  15. 48
  16. 64
  17. 58
  18. 184
  19. 188
  20. 122
  21. 58
  22. 59
  23. 66
  24. 54
  25. 162
  26. 30
  27. 44
  28. 196
  29. 17
  30. 42
  31. 144
  32. 88
  33. 132
  34. 152
  35. 46
  36. 172
  37. 156
  38. 84
  39. 43
  40. 13

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