← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 894 · 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 22 =
  2. 2.Half of 66 =
  3. 3.Double 23 =
  4. 4.Double 79 =
  5. 5.Half of 92 =
  6. 6.Half of 132 =
  7. 7.Double 81 =
  8. 8.Double 16 =
  9. 9.Double 11 =
  10. 10.Double 98 =
  11. 11.Double 17 =
  12. 12.Double 71 =
  13. 13.Double 41 =
  14. 14.Double 37 =
  15. 15.Half of 126 =
  16. 16.Double 21 =
  17. 17.Half of 32 =
  18. 18.Half of 36 =
  19. 19.Double 78 =
  20. 20.Double 75 =
  21. 21.Double 24 =
  22. 22.Double 93 =
  23. 23.Double 63 =
  24. 24.Half of 116 =
  25. 25.Half of 46 =
  26. 26.Double 15 =
  27. 27.Double 87 =
  28. 28.Double 29 =
  29. 29.Half of 98 =
  30. 30.Half of 42 =
  31. 31.Half of 184 =
  32. 32.Half of 62 =
  33. 33.Double 59 =
  34. 34.Half of 146 =
  35. 35.Double 49 =
  36. 36.Double 19 =
  37. 37.Double 61 =
  38. 38.Half of 56 =
  39. 39.Double 48 =
  40. 40.Half of 122 =

Answer key

  1. 11
  2. 33
  3. 46
  4. 158
  5. 46
  6. 66
  7. 162
  8. 32
  9. 22
  10. 196
  11. 34
  12. 142
  13. 82
  14. 74
  15. 63
  16. 42
  17. 16
  18. 18
  19. 156
  20. 150
  21. 48
  22. 186
  23. 126
  24. 58
  25. 23
  26. 30
  27. 174
  28. 58
  29. 49
  30. 21
  31. 92
  32. 31
  33. 118
  34. 73
  35. 98
  36. 38
  37. 122
  38. 28
  39. 96
  40. 61

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