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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 840 · 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. 1.66³ =
  2. 2.31³ =
  3. 3.51³ =
  4. 4.88³ =
  5. 5.71³ =
  6. 6.24³ =
  7. 7.32³ =
  8. 8.18³ =
  9. 9.76³ =
  10. 10.56³ =
  11. 11.91³ =
  12. 12.79³ =
  13. 13.69³ =
  14. 14.48³ =
  15. 15.66³ =
  16. 16.39³ =
  17. 17.64³ =
  18. 18.71³ =
  19. 19.92³ =
  20. 20.96³ =
  21. 21.21³ =
  22. 22.71³ =
  23. 23.54³ =
  24. 24.25³ =
  25. 25.82³ =
  26. 26.61³ =
  27. 27.84³ =
  28. 28.64³ =
  29. 29.43³ =
  30. 30.87³ =
  31. 31.84³ =
  32. 32.21³ =
  33. 33.61³ =
  34. 34.21³ =
  35. 35.68³ =
  36. 36.24³ =
  37. 37.18³ =
  38. 38.97³ =
  39. 39.43³ =
  40. 40.61³ =

Answer key

  1. 287496
  2. 29791
  3. 132651
  4. 681472
  5. 357911
  6. 13824
  7. 32768
  8. 5832
  9. 438976
  10. 175616
  11. 753571
  12. 493039
  13. 328509
  14. 110592
  15. 287496
  16. 59319
  17. 262144
  18. 357911
  19. 778688
  20. 884736
  21. 9261
  22. 357911
  23. 157464
  24. 15625
  25. 551368
  26. 226981
  27. 592704
  28. 262144
  29. 79507
  30. 658503
  31. 592704
  32. 9261
  33. 226981
  34. 9261
  35. 314432
  36. 13824
  37. 5832
  38. 912673
  39. 79507
  40. 226981

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