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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 994 · 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. 1.61³ =
  2. 2.36³ =
  3. 3.96³ =
  4. 4.24³ =
  5. 5.15³ =
  6. 6.56³ =
  7. 7.25³ =
  8. 8.93³ =
  9. 9.41³ =
  10. 10.44³ =
  11. 11.83³ =
  12. 12.85³ =
  13. 13.15³ =
  14. 14.21³ =
  15. 15.65³ =
  16. 16.55³ =
  17. 17.11³ =
  18. 18.48³ =
  19. 19.91³ =
  20. 20.45³ =
  21. 21.36³ =
  22. 22.37³ =
  23. 23.34³ =
  24. 24.92³ =
  25. 25.71³ =
  26. 26.82³ =
  27. 27.43³ =
  28. 28.64³ =
  29. 29.41³ =
  30. 30.31³ =
  31. 31.32³ =
  32. 32.11³ =
  33. 33.74³ =
  34. 34.15³ =
  35. 35.17³ =
  36. 36.12³ =
  37. 37.15³ =
  38. 38.35³ =
  39. 39.72³ =
  40. 40.48³ =

Answer key

  1. 226981
  2. 46656
  3. 884736
  4. 13824
  5. 3375
  6. 175616
  7. 15625
  8. 804357
  9. 68921
  10. 85184
  11. 571787
  12. 614125
  13. 3375
  14. 9261
  15. 274625
  16. 166375
  17. 1331
  18. 110592
  19. 753571
  20. 91125
  21. 46656
  22. 50653
  23. 39304
  24. 778688
  25. 357911
  26. 551368
  27. 79507
  28. 262144
  29. 68921
  30. 29791
  31. 32768
  32. 1331
  33. 405224
  34. 3375
  35. 4913
  36. 1728
  37. 3375
  38. 42875
  39. 373248
  40. 110592

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