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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 123 · 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. 1.82³ =
  2. 2.84³ =
  3. 3.73³ =
  4. 4.47³ =
  5. 5.79³ =
  6. 6.95³ =
  7. 7.56³ =
  8. 8.17³ =
  9. 9.82³ =
  10. 10.31³ =
  11. 11.25³ =
  12. 12.77³ =
  13. 13.71³ =
  14. 14.76³ =
  15. 15.61³ =
  16. 16.19³ =
  17. 17.68³ =
  18. 18.26³ =
  19. 19.91³ =
  20. 20.88³ =
  21. 21.38³ =
  22. 22.28³ =
  23. 23.67³ =
  24. 24.81³ =
  25. 25.27³ =
  26. 26.64³ =
  27. 27.46³ =
  28. 28.95³ =
  29. 29.91³ =
  30. 30.38³ =
  31. 31.28³ =
  32. 32.92³ =
  33. 33.46³ =
  34. 34.41³ =
  35. 35.83³ =
  36. 36.48³ =
  37. 37.32³ =
  38. 38.21³ =
  39. 39.83³ =
  40. 40.64³ =

Answer key

  1. 551368
  2. 592704
  3. 389017
  4. 103823
  5. 493039
  6. 857375
  7. 175616
  8. 4913
  9. 551368
  10. 29791
  11. 15625
  12. 456533
  13. 357911
  14. 438976
  15. 226981
  16. 6859
  17. 314432
  18. 17576
  19. 753571
  20. 681472
  21. 54872
  22. 21952
  23. 300763
  24. 531441
  25. 19683
  26. 262144
  27. 97336
  28. 857375
  29. 753571
  30. 54872
  31. 21952
  32. 778688
  33. 97336
  34. 68921
  35. 571787
  36. 110592
  37. 32768
  38. 9261
  39. 571787
  40. 262144

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