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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 268 · 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. 2.75³ =
  3. 3.16³ =
  4. 4.59³ =
  5. 5.75³ =
  6. 6.17³ =
  7. 7.62³ =
  8. 8.41³ =
  9. 9.17³ =
  10. 10.71³ =
  11. 11.24³ =
  12. 12.88³ =
  13. 13.33³ =
  14. 14.69³ =
  15. 15.77³ =
  16. 16.31³ =
  17. 17.51³ =
  18. 18.44³ =
  19. 19.19³ =
  20. 20.85³ =
  21. 21.64³ =
  22. 22.84³ =
  23. 23.66³ =
  24. 24.84³ =
  25. 25.16³ =
  26. 26.98³ =
  27. 27.18³ =
  28. 28.26³ =
  29. 29.62³ =
  30. 30.26³ =
  31. 31.61³ =
  32. 32.13³ =
  33. 33.96³ =
  34. 34.98³ =
  35. 35.66³ =
  36. 36.62³ =
  37. 37.63³ =
  38. 38.91³ =
  39. 39.91³ =
  40. 40.88³ =

Answer key

  1. 29791
  2. 421875
  3. 4096
  4. 205379
  5. 421875
  6. 4913
  7. 238328
  8. 68921
  9. 4913
  10. 357911
  11. 13824
  12. 681472
  13. 35937
  14. 328509
  15. 456533
  16. 29791
  17. 132651
  18. 85184
  19. 6859
  20. 614125
  21. 262144
  22. 592704
  23. 287496
  24. 592704
  25. 4096
  26. 941192
  27. 5832
  28. 17576
  29. 238328
  30. 17576
  31. 226981
  32. 2197
  33. 884736
  34. 941192
  35. 287496
  36. 238328
  37. 250047
  38. 753571
  39. 753571
  40. 681472

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