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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 368 · 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. 1.82³ =
  2. 2.59³ =
  3. 3.23³ =
  4. 4.17³ =
  5. 5.52³ =
  6. 6.69³ =
  7. 7.33³ =
  8. 8.45³ =
  9. 9.16³ =
  10. 10.49³ =
  11. 11.88³ =
  12. 12.95³ =
  13. 13.41³ =
  14. 14.33³ =
  15. 15.59³ =
  16. 16.72³ =
  17. 17.94³ =
  18. 18.12³ =
  19. 19.21³ =
  20. 20.21³ =
  21. 21.99³ =
  22. 22.12³ =
  23. 23.76³ =
  24. 24.49³ =
  25. 25.72³ =
  26. 26.14³ =
  27. 27.94³ =
  28. 28.41³ =
  29. 29.95³ =
  30. 30.31³ =
  31. 31.72³ =
  32. 32.32³ =
  33. 33.21³ =
  34. 34.67³ =
  35. 35.14³ =
  36. 36.27³ =
  37. 37.85³ =
  38. 38.31³ =
  39. 39.22³ =
  40. 40.83³ =

Answer key

  1. 551368
  2. 205379
  3. 12167
  4. 4913
  5. 140608
  6. 328509
  7. 35937
  8. 91125
  9. 4096
  10. 117649
  11. 681472
  12. 857375
  13. 68921
  14. 35937
  15. 205379
  16. 373248
  17. 830584
  18. 1728
  19. 9261
  20. 9261
  21. 970299
  22. 1728
  23. 438976
  24. 117649
  25. 373248
  26. 2744
  27. 830584
  28. 68921
  29. 857375
  30. 29791
  31. 373248
  32. 32768
  33. 9261
  34. 300763
  35. 2744
  36. 19683
  37. 614125
  38. 29791
  39. 10648
  40. 571787

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