← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 707 · 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 86 =
  2. 2.Double 16 =
  3. 3.Double 37 =
  4. 4.Half of 68 =
  5. 5.Half of 76 =
  6. 6.Double 48 =
  7. 7.Double 85 =
  8. 8.Half of 184 =
  9. 9.Half of 58 =
  10. 10.Double 24 =
  11. 11.Double 91 =
  12. 12.Half of 94 =
  13. 13.Half of 134 =
  14. 14.Double 88 =
  15. 15.Half of 196 =
  16. 16.Double 28 =
  17. 17.Double 97 =
  18. 18.Half of 112 =
  19. 19.Half of 72 =
  20. 20.Half of 64 =
  21. 21.Double 73 =
  22. 22.Double 45 =
  23. 23.Double 65 =
  24. 24.Double 47 =
  25. 25.Double 21 =
  26. 26.Double 27 =
  27. 27.Double 41 =
  28. 28.Double 69 =
  29. 29.Half of 152 =
  30. 30.Half of 26 =
  31. 31.Half of 128 =
  32. 32.Double 62 =
  33. 33.Double 22 =
  34. 34.Double 32 =
  35. 35.Half of 48 =
  36. 36.Half of 56 =
  37. 37.Half of 38 =
  38. 38.Double 49 =
  39. 39.Half of 16 =
  40. 40.Double 55 =

Answer key

  1. 172
  2. 32
  3. 74
  4. 34
  5. 38
  6. 96
  7. 170
  8. 92
  9. 29
  10. 48
  11. 182
  12. 47
  13. 67
  14. 176
  15. 98
  16. 56
  17. 194
  18. 56
  19. 36
  20. 32
  21. 146
  22. 90
  23. 130
  24. 94
  25. 42
  26. 54
  27. 82
  28. 138
  29. 76
  30. 13
  31. 64
  32. 124
  33. 44
  34. 64
  35. 24
  36. 28
  37. 19
  38. 98
  39. 8
  40. 110

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