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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 772 · 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. 1.31³ =
  2. 2.92³ =
  3. 3.97³ =
  4. 4.87³ =
  5. 5.86³ =
  6. 6.71³ =
  7. 7.77³ =
  8. 8.98³ =
  9. 9.85³ =
  10. 10.45³ =
  11. 11.62³ =
  12. 12.44³ =
  13. 13.98³ =
  14. 14.84³ =
  15. 15.57³ =
  16. 16.23³ =
  17. 17.55³ =
  18. 18.37³ =
  19. 19.44³ =
  20. 20.85³ =
  21. 21.33³ =
  22. 22.19³ =
  23. 23.64³ =
  24. 24.32³ =
  25. 25.53³ =
  26. 26.35³ =
  27. 27.39³ =
  28. 28.47³ =
  29. 29.33³ =
  30. 30.33³ =
  31. 31.19³ =
  32. 32.26³ =
  33. 33.89³ =
  34. 34.42³ =
  35. 35.83³ =
  36. 36.36³ =
  37. 37.63³ =
  38. 38.42³ =
  39. 39.16³ =
  40. 40.58³ =

Answer key

  1. 29791
  2. 778688
  3. 912673
  4. 658503
  5. 636056
  6. 357911
  7. 456533
  8. 941192
  9. 614125
  10. 91125
  11. 238328
  12. 85184
  13. 941192
  14. 592704
  15. 185193
  16. 12167
  17. 166375
  18. 50653
  19. 85184
  20. 614125
  21. 35937
  22. 6859
  23. 262144
  24. 32768
  25. 148877
  26. 42875
  27. 59319
  28. 103823
  29. 35937
  30. 35937
  31. 6859
  32. 17576
  33. 704969
  34. 74088
  35. 571787
  36. 46656
  37. 250047
  38. 74088
  39. 4096
  40. 195112

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