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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 413 · 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. 1.29³ =
  2. 2.81³ =
  3. 3.61³ =
  4. 4.18³ =
  5. 5.16³ =
  6. 6.77³ =
  7. 7.26³ =
  8. 8.36³ =
  9. 9.52³ =
  10. 10.12³ =
  11. 11.11³ =
  12. 12.51³ =
  13. 13.88³ =
  14. 14.77³ =
  15. 15.42³ =
  16. 16.92³ =
  17. 17.87³ =
  18. 18.51³ =
  19. 19.23³ =
  20. 20.24³ =
  21. 21.73³ =
  22. 22.26³ =
  23. 23.81³ =
  24. 24.51³ =
  25. 25.79³ =
  26. 26.66³ =
  27. 27.69³ =
  28. 28.91³ =
  29. 29.29³ =
  30. 30.64³ =
  31. 31.21³ =
  32. 32.64³ =
  33. 33.98³ =
  34. 34.26³ =
  35. 35.79³ =
  36. 36.19³ =
  37. 37.51³ =
  38. 38.14³ =
  39. 39.92³ =
  40. 40.84³ =

Answer key

  1. 24389
  2. 531441
  3. 226981
  4. 5832
  5. 4096
  6. 456533
  7. 17576
  8. 46656
  9. 140608
  10. 1728
  11. 1331
  12. 132651
  13. 681472
  14. 456533
  15. 74088
  16. 778688
  17. 658503
  18. 132651
  19. 12167
  20. 13824
  21. 389017
  22. 17576
  23. 531441
  24. 132651
  25. 493039
  26. 287496
  27. 328509
  28. 753571
  29. 24389
  30. 262144
  31. 9261
  32. 262144
  33. 941192
  34. 17576
  35. 493039
  36. 6859
  37. 132651
  38. 2744
  39. 778688
  40. 592704

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