← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 1 · 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 124 =
  2. 2.Double 63 =
  3. 3.Half of 12 =
  4. 4.Half of 138 =
  5. 5.Half of 76 =
  6. 6.Double 74 =
  7. 7.Half of 32 =
  8. 8.Half of 72 =
  9. 9.Double 28 =
  10. 10.Double 59 =
  11. 11.Half of 26 =
  12. 12.Double 41 =
  13. 13.Double 71 =
  14. 14.Double 26 =
  15. 15.Half of 132 =
  16. 16.Double 69 =
  17. 17.Half of 162 =
  18. 18.Double 98 =
  19. 19.Double 39 =
  20. 20.Double 36 =
  21. 21.Double 67 =
  22. 22.Double 48 =
  23. 23.Double 58 =
  24. 24.Half of 122 =
  25. 25.Double 68 =
  26. 26.Half of 84 =
  27. 27.Double 42 =
  28. 28.Double 96 =
  29. 29.Half of 16 =
  30. 30.Half of 106 =
  31. 31.Double 35 =
  32. 32.Half of 48 =
  33. 33.Double 64 =
  34. 34.Double 13 =
  35. 35.Half of 104 =
  36. 36.Half of 178 =
  37. 37.Half of 42 =
  38. 38.Double 79 =
  39. 39.Double 44 =
  40. 40.Half of 172 =

Answer key

  1. 62
  2. 126
  3. 6
  4. 69
  5. 38
  6. 148
  7. 16
  8. 36
  9. 56
  10. 118
  11. 13
  12. 82
  13. 142
  14. 52
  15. 66
  16. 138
  17. 81
  18. 196
  19. 78
  20. 72
  21. 134
  22. 96
  23. 116
  24. 61
  25. 136
  26. 42
  27. 84
  28. 192
  29. 8
  30. 53
  31. 70
  32. 24
  33. 128
  34. 26
  35. 52
  36. 89
  37. 21
  38. 158
  39. 88
  40. 86

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