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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 566 · 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. 1.84³ =
  2. 2.89³ =
  3. 3.54³ =
  4. 4.69³ =
  5. 5.78³ =
  6. 6.53³ =
  7. 7.12³ =
  8. 8.43³ =
  9. 9.59³ =
  10. 10.28³ =
  11. 11.48³ =
  12. 12.69³ =
  13. 13.76³ =
  14. 14.71³ =
  15. 15.87³ =
  16. 16.69³ =
  17. 17.41³ =
  18. 18.58³ =
  19. 19.91³ =
  20. 20.69³ =
  21. 21.24³ =
  22. 22.51³ =
  23. 23.69³ =
  24. 24.66³ =
  25. 25.59³ =
  26. 26.56³ =
  27. 27.16³ =
  28. 28.34³ =
  29. 29.23³ =
  30. 30.48³ =
  31. 31.98³ =
  32. 32.15³ =
  33. 33.99³ =
  34. 34.71³ =
  35. 35.28³ =
  36. 36.51³ =
  37. 37.12³ =
  38. 38.87³ =
  39. 39.21³ =
  40. 40.65³ =

Answer key

  1. 592704
  2. 704969
  3. 157464
  4. 328509
  5. 474552
  6. 148877
  7. 1728
  8. 79507
  9. 205379
  10. 21952
  11. 110592
  12. 328509
  13. 438976
  14. 357911
  15. 658503
  16. 328509
  17. 68921
  18. 195112
  19. 753571
  20. 328509
  21. 13824
  22. 132651
  23. 328509
  24. 287496
  25. 205379
  26. 175616
  27. 4096
  28. 39304
  29. 12167
  30. 110592
  31. 941192
  32. 3375
  33. 970299
  34. 357911
  35. 21952
  36. 132651
  37. 1728
  38. 658503
  39. 9261
  40. 274625

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