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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 349 · 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. 1.51³ =
  2. 2.91³ =
  3. 3.21³ =
  4. 4.69³ =
  5. 5.61³ =
  6. 6.67³ =
  7. 7.14³ =
  8. 8.28³ =
  9. 9.12³ =
  10. 10.77³ =
  11. 11.12³ =
  12. 12.81³ =
  13. 13.41³ =
  14. 14.52³ =
  15. 15.31³ =
  16. 16.81³ =
  17. 17.47³ =
  18. 18.76³ =
  19. 19.88³ =
  20. 20.99³ =
  21. 21.19³ =
  22. 22.75³ =
  23. 23.51³ =
  24. 24.76³ =
  25. 25.41³ =
  26. 26.44³ =
  27. 27.37³ =
  28. 28.64³ =
  29. 29.83³ =
  30. 30.78³ =
  31. 31.11³ =
  32. 32.98³ =
  33. 33.23³ =
  34. 34.43³ =
  35. 35.55³ =
  36. 36.56³ =
  37. 37.42³ =
  38. 38.51³ =
  39. 39.61³ =
  40. 40.34³ =

Answer key

  1. 132651
  2. 753571
  3. 9261
  4. 328509
  5. 226981
  6. 300763
  7. 2744
  8. 21952
  9. 1728
  10. 456533
  11. 1728
  12. 531441
  13. 68921
  14. 140608
  15. 29791
  16. 531441
  17. 103823
  18. 438976
  19. 681472
  20. 970299
  21. 6859
  22. 421875
  23. 132651
  24. 438976
  25. 68921
  26. 85184
  27. 50653
  28. 262144
  29. 571787
  30. 474552
  31. 1331
  32. 941192
  33. 12167
  34. 79507
  35. 166375
  36. 175616
  37. 74088
  38. 132651
  39. 226981
  40. 39304

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