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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 816 · 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. 1.42³ =
  2. 2.89³ =
  3. 3.68³ =
  4. 4.21³ =
  5. 5.31³ =
  6. 6.53³ =
  7. 7.25³ =
  8. 8.54³ =
  9. 9.46³ =
  10. 10.79³ =
  11. 11.47³ =
  12. 12.19³ =
  13. 13.84³ =
  14. 14.34³ =
  15. 15.48³ =
  16. 16.95³ =
  17. 17.91³ =
  18. 18.91³ =
  19. 19.88³ =
  20. 20.32³ =
  21. 21.55³ =
  22. 22.33³ =
  23. 23.71³ =
  24. 24.79³ =
  25. 25.72³ =
  26. 26.15³ =
  27. 27.26³ =
  28. 28.53³ =
  29. 29.58³ =
  30. 30.96³ =
  31. 31.94³ =
  32. 32.68³ =
  33. 33.22³ =
  34. 34.76³ =
  35. 35.62³ =
  36. 36.98³ =
  37. 37.15³ =
  38. 38.27³ =
  39. 39.84³ =
  40. 40.61³ =

Answer key

  1. 74088
  2. 704969
  3. 314432
  4. 9261
  5. 29791
  6. 148877
  7. 15625
  8. 157464
  9. 97336
  10. 493039
  11. 103823
  12. 6859
  13. 592704
  14. 39304
  15. 110592
  16. 857375
  17. 753571
  18. 753571
  19. 681472
  20. 32768
  21. 166375
  22. 35937
  23. 357911
  24. 493039
  25. 373248
  26. 3375
  27. 17576
  28. 148877
  29. 195112
  30. 884736
  31. 830584
  32. 314432
  33. 10648
  34. 438976
  35. 238328
  36. 941192
  37. 3375
  38. 19683
  39. 592704
  40. 226981

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