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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 696 · 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. 1.83³ =
  2. 2.72³ =
  3. 3.33³ =
  4. 4.33³ =
  5. 5.71³ =
  6. 6.34³ =
  7. 7.37³ =
  8. 8.35³ =
  9. 9.15³ =
  10. 10.96³ =
  11. 11.62³ =
  12. 12.86³ =
  13. 13.11³ =
  14. 14.31³ =
  15. 15.24³ =
  16. 16.76³ =
  17. 17.77³ =
  18. 18.13³ =
  19. 19.89³ =
  20. 20.63³ =
  21. 21.62³ =
  22. 22.91³ =
  23. 23.31³ =
  24. 24.74³ =
  25. 25.15³ =
  26. 26.31³ =
  27. 27.36³ =
  28. 28.97³ =
  29. 29.26³ =
  30. 30.67³ =
  31. 31.33³ =
  32. 32.49³ =
  33. 33.73³ =
  34. 34.62³ =
  35. 35.15³ =
  36. 36.36³ =
  37. 37.89³ =
  38. 38.17³ =
  39. 39.57³ =
  40. 40.25³ =

Answer key

  1. 571787
  2. 373248
  3. 35937
  4. 35937
  5. 357911
  6. 39304
  7. 50653
  8. 42875
  9. 3375
  10. 884736
  11. 238328
  12. 636056
  13. 1331
  14. 29791
  15. 13824
  16. 438976
  17. 456533
  18. 2197
  19. 704969
  20. 250047
  21. 238328
  22. 753571
  23. 29791
  24. 405224
  25. 3375
  26. 29791
  27. 46656
  28. 912673
  29. 17576
  30. 300763
  31. 35937
  32. 117649
  33. 389017
  34. 238328
  35. 3375
  36. 46656
  37. 704969
  38. 4913
  39. 185193
  40. 15625

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