← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 200 · 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 32 =
  2. 2.Half of 176 =
  3. 3.Double 89 =
  4. 4.Half of 36 =
  5. 5.Double 54 =
  6. 6.Double 12 =
  7. 7.Half of 52 =
  8. 8.Double 64 =
  9. 9.Half of 124 =
  10. 10.Half of 108 =
  11. 11.Double 67 =
  12. 12.Half of 22 =
  13. 13.Half of 188 =
  14. 14.Double 85 =
  15. 15.Half of 48 =
  16. 16.Half of 102 =
  17. 17.Half of 92 =
  18. 18.Double 37 =
  19. 19.Half of 98 =
  20. 20.Half of 58 =
  21. 21.Double 31 =
  22. 22.Double 21 =
  23. 23.Double 57 =
  24. 24.Double 79 =
  25. 25.Double 56 =
  26. 26.Half of 152 =
  27. 27.Double 91 =
  28. 28.Half of 132 =
  29. 29.Double 19 =
  30. 30.Half of 28 =
  31. 31.Double 65 =
  32. 32.Half of 122 =
  33. 33.Double 49 =
  34. 34.Double 86 =
  35. 35.Half of 56 =
  36. 36.Double 55 =
  37. 37.Double 28 =
  38. 38.Half of 136 =
  39. 39.Half of 14 =
  40. 40.Half of 138 =

Answer key

  1. 16
  2. 88
  3. 178
  4. 18
  5. 108
  6. 24
  7. 26
  8. 128
  9. 62
  10. 54
  11. 134
  12. 11
  13. 94
  14. 170
  15. 24
  16. 51
  17. 46
  18. 74
  19. 49
  20. 29
  21. 62
  22. 42
  23. 114
  24. 158
  25. 112
  26. 76
  27. 182
  28. 66
  29. 38
  30. 14
  31. 130
  32. 61
  33. 98
  34. 172
  35. 28
  36. 110
  37. 56
  38. 68
  39. 7
  40. 69

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