← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 672 · 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 186 =
  2. 2.Half of 94 =
  3. 3.Half of 168 =
  4. 4.Half of 138 =
  5. 5.Half of 14 =
  6. 6.Double 81 =
  7. 7.Double 31 =
  8. 8.Double 97 =
  9. 9.Double 87 =
  10. 10.Double 85 =
  11. 11.Double 44 =
  12. 12.Double 62 =
  13. 13.Half of 198 =
  14. 14.Half of 54 =
  15. 15.Double 36 =
  16. 16.Double 63 =
  17. 17.Double 72 =
  18. 18.Double 32 =
  19. 19.Half of 192 =
  20. 20.Double 68 =
  21. 21.Half of 32 =
  22. 22.Half of 102 =
  23. 23.Double 83 =
  24. 24.Half of 134 =
  25. 25.Double 38 =
  26. 26.Double 16 =
  27. 27.Double 73 =
  28. 28.Half of 164 =
  29. 29.Half of 44 =
  30. 30.Double 29 =
  31. 31.Half of 64 =
  32. 32.Half of 96 =
  33. 33.Half of 112 =
  34. 34.Half of 48 =
  35. 35.Double 58 =
  36. 36.Double 66 =
  37. 37.Double 91 =
  38. 38.Half of 188 =
  39. 39.Double 86 =
  40. 40.Half of 104 =

Answer key

  1. 93
  2. 47
  3. 84
  4. 69
  5. 7
  6. 162
  7. 62
  8. 194
  9. 174
  10. 170
  11. 88
  12. 124
  13. 99
  14. 27
  15. 72
  16. 126
  17. 144
  18. 64
  19. 96
  20. 136
  21. 16
  22. 51
  23. 166
  24. 67
  25. 76
  26. 32
  27. 146
  28. 82
  29. 22
  30. 58
  31. 32
  32. 48
  33. 56
  34. 24
  35. 116
  36. 132
  37. 182
  38. 94
  39. 172
  40. 52

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