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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 804 · 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. 1.54³ =
  2. 2.99³ =
  3. 3.64³ =
  4. 4.69³ =
  5. 5.31³ =
  6. 6.77³ =
  7. 7.53³ =
  8. 8.51³ =
  9. 9.19³ =
  10. 10.43³ =
  11. 11.21³ =
  12. 12.87³ =
  13. 13.25³ =
  14. 14.54³ =
  15. 15.42³ =
  16. 16.56³ =
  17. 17.78³ =
  18. 18.98³ =
  19. 19.42³ =
  20. 20.78³ =
  21. 21.24³ =
  22. 22.22³ =
  23. 23.19³ =
  24. 24.37³ =
  25. 25.89³ =
  26. 26.57³ =
  27. 27.38³ =
  28. 28.84³ =
  29. 29.51³ =
  30. 30.54³ =
  31. 31.11³ =
  32. 32.35³ =
  33. 33.93³ =
  34. 34.51³ =
  35. 35.22³ =
  36. 36.64³ =
  37. 37.71³ =
  38. 38.17³ =
  39. 39.52³ =
  40. 40.15³ =

Answer key

  1. 157464
  2. 970299
  3. 262144
  4. 328509
  5. 29791
  6. 456533
  7. 148877
  8. 132651
  9. 6859
  10. 79507
  11. 9261
  12. 658503
  13. 15625
  14. 157464
  15. 74088
  16. 175616
  17. 474552
  18. 941192
  19. 74088
  20. 474552
  21. 13824
  22. 10648
  23. 6859
  24. 50653
  25. 704969
  26. 185193
  27. 54872
  28. 592704
  29. 132651
  30. 157464
  31. 1331
  32. 42875
  33. 804357
  34. 132651
  35. 10648
  36. 262144
  37. 357911
  38. 4913
  39. 140608
  40. 3375

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