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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 461 · 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. 1.85³ =
  2. 2.95³ =
  3. 3.47³ =
  4. 4.58³ =
  5. 5.67³ =
  6. 6.96³ =
  7. 7.18³ =
  8. 8.89³ =
  9. 9.75³ =
  10. 10.83³ =
  11. 11.17³ =
  12. 12.19³ =
  13. 13.38³ =
  14. 14.76³ =
  15. 15.18³ =
  16. 16.85³ =
  17. 17.32³ =
  18. 18.99³ =
  19. 19.56³ =
  20. 20.85³ =
  21. 21.45³ =
  22. 22.24³ =
  23. 23.18³ =
  24. 24.77³ =
  25. 25.71³ =
  26. 26.28³ =
  27. 27.83³ =
  28. 28.58³ =
  29. 29.14³ =
  30. 30.93³ =
  31. 31.78³ =
  32. 32.54³ =
  33. 33.32³ =
  34. 34.31³ =
  35. 35.47³ =
  36. 36.92³ =
  37. 37.37³ =
  38. 38.66³ =
  39. 39.97³ =
  40. 40.83³ =

Answer key

  1. 614125
  2. 857375
  3. 103823
  4. 195112
  5. 300763
  6. 884736
  7. 5832
  8. 704969
  9. 421875
  10. 571787
  11. 4913
  12. 6859
  13. 54872
  14. 438976
  15. 5832
  16. 614125
  17. 32768
  18. 970299
  19. 175616
  20. 614125
  21. 91125
  22. 13824
  23. 5832
  24. 456533
  25. 357911
  26. 21952
  27. 571787
  28. 195112
  29. 2744
  30. 804357
  31. 474552
  32. 157464
  33. 32768
  34. 29791
  35. 103823
  36. 778688
  37. 50653
  38. 287496
  39. 912673
  40. 571787

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