← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 650 · 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 27 =
  2. 2.Half of 178 =
  3. 3.Double 35 =
  4. 4.Half of 168 =
  5. 5.Double 63 =
  6. 6.Double 55 =
  7. 7.Half of 144 =
  8. 8.Double 13 =
  9. 9.Half of 182 =
  10. 10.Double 52 =
  11. 11.Double 89 =
  12. 12.Double 32 =
  13. 13.Half of 48 =
  14. 14.Half of 82 =
  15. 15.Double 47 =
  16. 16.Double 79 =
  17. 17.Double 61 =
  18. 18.Half of 14 =
  19. 19.Half of 148 =
  20. 20.Half of 132 =
  21. 21.Double 78 =
  22. 22.Double 26 =
  23. 23.Half of 172 =
  24. 24.Half of 22 =
  25. 25.Double 42 =
  26. 26.Half of 56 =
  27. 27.Double 31 =
  28. 28.Half of 114 =
  29. 29.Half of 92 =
  30. 30.Half of 32 =
  31. 31.Half of 134 =
  32. 32.Half of 176 =
  33. 33.Double 18 =
  34. 34.Double 22 =
  35. 35.Half of 122 =
  36. 36.Double 93 =
  37. 37.Half of 52 =
  38. 38.Half of 16 =
  39. 39.Double 73 =
  40. 40.Double 15 =

Answer key

  1. 54
  2. 89
  3. 70
  4. 84
  5. 126
  6. 110
  7. 72
  8. 26
  9. 91
  10. 104
  11. 178
  12. 64
  13. 24
  14. 41
  15. 94
  16. 158
  17. 122
  18. 7
  19. 74
  20. 66
  21. 156
  22. 52
  23. 86
  24. 11
  25. 84
  26. 28
  27. 62
  28. 57
  29. 46
  30. 16
  31. 67
  32. 88
  33. 36
  34. 44
  35. 61
  36. 186
  37. 26
  38. 8
  39. 146
  40. 30

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