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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 359 · 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. 1.99³ =
  2. 2.79³ =
  3. 3.78³ =
  4. 4.79³ =
  5. 5.74³ =
  6. 6.84³ =
  7. 7.78³ =
  8. 8.39³ =
  9. 9.65³ =
  10. 10.66³ =
  11. 11.31³ =
  12. 12.17³ =
  13. 13.41³ =
  14. 14.36³ =
  15. 15.22³ =
  16. 16.14³ =
  17. 17.73³ =
  18. 18.19³ =
  19. 19.49³ =
  20. 20.39³ =
  21. 21.17³ =
  22. 22.24³ =
  23. 23.41³ =
  24. 24.91³ =
  25. 25.22³ =
  26. 26.25³ =
  27. 27.98³ =
  28. 28.26³ =
  29. 29.89³ =
  30. 30.87³ =
  31. 31.62³ =
  32. 32.21³ =
  33. 33.22³ =
  34. 34.54³ =
  35. 35.12³ =
  36. 36.36³ =
  37. 37.99³ =
  38. 38.74³ =
  39. 39.73³ =
  40. 40.16³ =

Answer key

  1. 970299
  2. 493039
  3. 474552
  4. 493039
  5. 405224
  6. 592704
  7. 474552
  8. 59319
  9. 274625
  10. 287496
  11. 29791
  12. 4913
  13. 68921
  14. 46656
  15. 10648
  16. 2744
  17. 389017
  18. 6859
  19. 117649
  20. 59319
  21. 4913
  22. 13824
  23. 68921
  24. 753571
  25. 10648
  26. 15625
  27. 941192
  28. 17576
  29. 704969
  30. 658503
  31. 238328
  32. 9261
  33. 10648
  34. 157464
  35. 1728
  36. 46656
  37. 970299
  38. 405224
  39. 389017
  40. 4096

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