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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 272 · 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. 1.76³ =
  2. 2.61³ =
  3. 3.35³ =
  4. 4.72³ =
  5. 5.53³ =
  6. 6.94³ =
  7. 7.11³ =
  8. 8.46³ =
  9. 9.15³ =
  10. 10.21³ =
  11. 11.67³ =
  12. 12.81³ =
  13. 13.92³ =
  14. 14.16³ =
  15. 15.86³ =
  16. 16.28³ =
  17. 17.32³ =
  18. 18.45³ =
  19. 19.65³ =
  20. 20.16³ =
  21. 21.77³ =
  22. 22.85³ =
  23. 23.13³ =
  24. 24.98³ =
  25. 25.88³ =
  26. 26.33³ =
  27. 27.54³ =
  28. 28.42³ =
  29. 29.61³ =
  30. 30.19³ =
  31. 31.18³ =
  32. 32.34³ =
  33. 33.57³ =
  34. 34.89³ =
  35. 35.75³ =
  36. 36.97³ =
  37. 37.68³ =
  38. 38.31³ =
  39. 39.91³ =
  40. 40.24³ =

Answer key

  1. 438976
  2. 226981
  3. 42875
  4. 373248
  5. 148877
  6. 830584
  7. 1331
  8. 97336
  9. 3375
  10. 9261
  11. 300763
  12. 531441
  13. 778688
  14. 4096
  15. 636056
  16. 21952
  17. 32768
  18. 91125
  19. 274625
  20. 4096
  21. 456533
  22. 614125
  23. 2197
  24. 941192
  25. 681472
  26. 35937
  27. 157464
  28. 74088
  29. 226981
  30. 6859
  31. 5832
  32. 39304
  33. 185193
  34. 704969
  35. 421875
  36. 912673
  37. 314432
  38. 29791
  39. 753571
  40. 13824

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