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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 870 · 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. 1.92³ =
  2. 2.31³ =
  3. 3.92³ =
  4. 4.34³ =
  5. 5.41³ =
  6. 6.31³ =
  7. 7.34³ =
  8. 8.85³ =
  9. 9.32³ =
  10. 10.19³ =
  11. 11.87³ =
  12. 12.97³ =
  13. 13.73³ =
  14. 14.85³ =
  15. 15.15³ =
  16. 16.21³ =
  17. 17.68³ =
  18. 18.25³ =
  19. 19.43³ =
  20. 20.97³ =
  21. 21.26³ =
  22. 22.84³ =
  23. 23.67³ =
  24. 24.12³ =
  25. 25.13³ =
  26. 26.33³ =
  27. 27.85³ =
  28. 28.11³ =
  29. 29.94³ =
  30. 30.32³ =
  31. 31.21³ =
  32. 32.67³ =
  33. 33.37³ =
  34. 34.84³ =
  35. 35.48³ =
  36. 36.39³ =
  37. 37.15³ =
  38. 38.96³ =
  39. 39.14³ =
  40. 40.73³ =

Answer key

  1. 778688
  2. 29791
  3. 778688
  4. 39304
  5. 68921
  6. 29791
  7. 39304
  8. 614125
  9. 32768
  10. 6859
  11. 658503
  12. 912673
  13. 389017
  14. 614125
  15. 3375
  16. 9261
  17. 314432
  18. 15625
  19. 79507
  20. 912673
  21. 17576
  22. 592704
  23. 300763
  24. 1728
  25. 2197
  26. 35937
  27. 614125
  28. 1331
  29. 830584
  30. 32768
  31. 9261
  32. 300763
  33. 50653
  34. 592704
  35. 110592
  36. 59319
  37. 3375
  38. 884736
  39. 2744
  40. 389017

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