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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 701 · 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. 1.31³ =
  2. 2.42³ =
  3. 3.74³ =
  4. 4.87³ =
  5. 5.15³ =
  6. 6.61³ =
  7. 7.26³ =
  8. 8.25³ =
  9. 9.36³ =
  10. 10.76³ =
  11. 11.79³ =
  12. 12.23³ =
  13. 13.86³ =
  14. 14.12³ =
  15. 15.94³ =
  16. 16.91³ =
  17. 17.36³ =
  18. 18.56³ =
  19. 19.67³ =
  20. 20.25³ =
  21. 21.66³ =
  22. 22.67³ =
  23. 23.66³ =
  24. 24.54³ =
  25. 25.91³ =
  26. 26.69³ =
  27. 27.85³ =
  28. 28.71³ =
  29. 29.25³ =
  30. 30.24³ =
  31. 31.38³ =
  32. 32.85³ =
  33. 33.42³ =
  34. 34.79³ =
  35. 35.86³ =
  36. 36.61³ =
  37. 37.96³ =
  38. 38.67³ =
  39. 39.38³ =
  40. 40.62³ =

Answer key

  1. 29791
  2. 74088
  3. 405224
  4. 658503
  5. 3375
  6. 226981
  7. 17576
  8. 15625
  9. 46656
  10. 438976
  11. 493039
  12. 12167
  13. 636056
  14. 1728
  15. 830584
  16. 753571
  17. 46656
  18. 175616
  19. 300763
  20. 15625
  21. 287496
  22. 300763
  23. 287496
  24. 157464
  25. 753571
  26. 328509
  27. 614125
  28. 357911
  29. 15625
  30. 13824
  31. 54872
  32. 614125
  33. 74088
  34. 493039
  35. 636056
  36. 226981
  37. 884736
  38. 300763
  39. 54872
  40. 238328

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