← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 16 · 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 39 =
  2. 2.Half of 192 =
  3. 3.Double 59 =
  4. 4.Half of 152 =
  5. 5.Half of 178 =
  6. 6.Double 41 =
  7. 7.Half of 122 =
  8. 8.Double 43 =
  9. 9.Double 26 =
  10. 10.Half of 188 =
  11. 11.Half of 156 =
  12. 12.Double 72 =
  13. 13.Half of 132 =
  14. 14.Half of 154 =
  15. 15.Half of 172 =
  16. 16.Double 18 =
  17. 17.Half of 24 =
  18. 18.Double 77 =
  19. 19.Double 34 =
  20. 20.Double 35 =
  21. 21.Half of 72 =
  22. 22.Double 73 =
  23. 23.Double 27 =
  24. 24.Half of 88 =
  25. 25.Double 51 =
  26. 26.Half of 36 =
  27. 27.Half of 142 =
  28. 28.Double 19 =
  29. 29.Double 91 =
  30. 30.Double 58 =
  31. 31.Half of 162 =
  32. 32.Half of 92 =
  33. 33.Double 22 =
  34. 34.Double 61 =
  35. 35.Half of 56 =
  36. 36.Half of 32 =
  37. 37.Double 11 =
  38. 38.Double 57 =
  39. 39.Double 74 =
  40. 40.Half of 26 =

Answer key

  1. 78
  2. 96
  3. 118
  4. 76
  5. 89
  6. 82
  7. 61
  8. 86
  9. 52
  10. 94
  11. 78
  12. 144
  13. 66
  14. 77
  15. 86
  16. 36
  17. 12
  18. 154
  19. 68
  20. 70
  21. 36
  22. 146
  23. 54
  24. 44
  25. 102
  26. 18
  27. 71
  28. 38
  29. 182
  30. 116
  31. 81
  32. 46
  33. 44
  34. 122
  35. 28
  36. 16
  37. 22
  38. 114
  39. 148
  40. 13

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