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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 586 · 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. 1.91³ =
  2. 2.18³ =
  3. 3.24³ =
  4. 4.52³ =
  5. 5.12³ =
  6. 6.95³ =
  7. 7.93³ =
  8. 8.47³ =
  9. 9.19³ =
  10. 10.71³ =
  11. 11.17³ =
  12. 12.73³ =
  13. 13.53³ =
  14. 14.85³ =
  15. 15.84³ =
  16. 16.75³ =
  17. 17.92³ =
  18. 18.81³ =
  19. 19.21³ =
  20. 20.55³ =
  21. 21.54³ =
  22. 22.43³ =
  23. 23.25³ =
  24. 24.58³ =
  25. 25.96³ =
  26. 26.69³ =
  27. 27.95³ =
  28. 28.56³ =
  29. 29.36³ =
  30. 30.45³ =
  31. 31.17³ =
  32. 32.95³ =
  33. 33.71³ =
  34. 34.97³ =
  35. 35.71³ =
  36. 36.14³ =
  37. 37.19³ =
  38. 38.76³ =
  39. 39.62³ =
  40. 40.32³ =

Answer key

  1. 753571
  2. 5832
  3. 13824
  4. 140608
  5. 1728
  6. 857375
  7. 804357
  8. 103823
  9. 6859
  10. 357911
  11. 4913
  12. 389017
  13. 148877
  14. 614125
  15. 592704
  16. 421875
  17. 778688
  18. 531441
  19. 9261
  20. 166375
  21. 157464
  22. 79507
  23. 15625
  24. 195112
  25. 884736
  26. 328509
  27. 857375
  28. 175616
  29. 46656
  30. 91125
  31. 4913
  32. 857375
  33. 357911
  34. 912673
  35. 357911
  36. 2744
  37. 6859
  38. 438976
  39. 238328
  40. 32768

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