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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 558 · 40 sums
TalentJR

The trick (Anurupyena): Top row: a³, a²b, ab², b³ (each term is the one before × b ÷ a). Under the two middle terms write double of them, and add: a³ | 3a²b | 3ab² | b³. Combine from the right with carries.

NameDateTime takenScore ___ / 40
  1. 1.97³ =
  2. 2.69³ =
  3. 3.58³ =
  4. 4.35³ =
  5. 5.72³ =
  6. 6.57³ =
  7. 7.51³ =
  8. 8.17³ =
  9. 9.54³ =
  10. 10.17³ =
  11. 11.52³ =
  12. 12.32³ =
  13. 13.43³ =
  14. 14.55³ =
  15. 15.87³ =
  16. 16.49³ =
  17. 17.68³ =
  18. 18.14³ =
  19. 19.77³ =
  20. 20.53³ =
  21. 21.49³ =
  22. 22.39³ =
  23. 23.21³ =
  24. 24.87³ =
  25. 25.32³ =
  26. 26.65³ =
  27. 27.45³ =
  28. 28.81³ =
  29. 29.26³ =
  30. 30.41³ =
  31. 31.32³ =
  32. 32.13³ =
  33. 33.55³ =
  34. 34.86³ =
  35. 35.93³ =
  36. 36.22³ =
  37. 37.96³ =
  38. 38.34³ =
  39. 39.61³ =
  40. 40.67³ =

Answer key

  1. 912673
  2. 328509
  3. 195112
  4. 42875
  5. 373248
  6. 185193
  7. 132651
  8. 4913
  9. 157464
  10. 4913
  11. 140608
  12. 32768
  13. 79507
  14. 166375
  15. 658503
  16. 117649
  17. 314432
  18. 2744
  19. 456533
  20. 148877
  21. 117649
  22. 59319
  23. 9261
  24. 658503
  25. 32768
  26. 274625
  27. 91125
  28. 531441
  29. 17576
  30. 68921
  31. 32768
  32. 2197
  33. 166375
  34. 636056
  35. 804357
  36. 10648
  37. 884736
  38. 39304
  39. 226981
  40. 300763

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