← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 96 · 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 152 =
  2. 2.Half of 32 =
  3. 3.Double 59 =
  4. 4.Double 15 =
  5. 5.Half of 198 =
  6. 6.Double 16 =
  7. 7.Half of 24 =
  8. 8.Double 86 =
  9. 9.Double 87 =
  10. 10.Double 81 =
  11. 11.Double 21 =
  12. 12.Half of 22 =
  13. 13.Double 83 =
  14. 14.Half of 94 =
  15. 15.Half of 178 =
  16. 16.Half of 92 =
  17. 17.Half of 58 =
  18. 18.Double 78 =
  19. 19.Half of 132 =
  20. 20.Double 74 =
  21. 21.Double 97 =
  22. 22.Double 12 =
  23. 23.Half of 14 =
  24. 24.Half of 42 =
  25. 25.Double 51 =
  26. 26.Double 98 =
  27. 27.Double 94 =
  28. 28.Half of 52 =
  29. 29.Double 53 =
  30. 30.Double 84 =
  31. 31.Half of 128 =
  32. 32.Double 91 =
  33. 33.Half of 188 =
  34. 34.Double 17 =
  35. 35.Double 95 =
  36. 36.Half of 72 =
  37. 37.Double 14 =
  38. 38.Half of 146 =
  39. 39.Half of 44 =
  40. 40.Half of 28 =

Answer key

  1. 76
  2. 16
  3. 118
  4. 30
  5. 99
  6. 32
  7. 12
  8. 172
  9. 174
  10. 162
  11. 42
  12. 11
  13. 166
  14. 47
  15. 89
  16. 46
  17. 29
  18. 156
  19. 66
  20. 148
  21. 194
  22. 24
  23. 7
  24. 21
  25. 102
  26. 196
  27. 188
  28. 26
  29. 106
  30. 168
  31. 64
  32. 182
  33. 94
  34. 34
  35. 190
  36. 36
  37. 28
  38. 73
  39. 22
  40. 14

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