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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 739 · 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. 1.94³ =
  2. 2.15³ =
  3. 3.14³ =
  4. 4.11³ =
  5. 5.81³ =
  6. 6.18³ =
  7. 7.33³ =
  8. 8.79³ =
  9. 9.21³ =
  10. 10.21³ =
  11. 11.41³ =
  12. 12.16³ =
  13. 13.86³ =
  14. 14.27³ =
  15. 15.22³ =
  16. 16.92³ =
  17. 17.22³ =
  18. 18.71³ =
  19. 19.21³ =
  20. 20.74³ =
  21. 21.84³ =
  22. 22.58³ =
  23. 23.23³ =
  24. 24.51³ =
  25. 25.86³ =
  26. 26.66³ =
  27. 27.92³ =
  28. 28.72³ =
  29. 29.12³ =
  30. 30.95³ =
  31. 31.44³ =
  32. 32.18³ =
  33. 33.41³ =
  34. 34.15³ =
  35. 35.46³ =
  36. 36.67³ =
  37. 37.98³ =
  38. 38.75³ =
  39. 39.55³ =
  40. 40.71³ =

Answer key

  1. 830584
  2. 3375
  3. 2744
  4. 1331
  5. 531441
  6. 5832
  7. 35937
  8. 493039
  9. 9261
  10. 9261
  11. 68921
  12. 4096
  13. 636056
  14. 19683
  15. 10648
  16. 778688
  17. 10648
  18. 357911
  19. 9261
  20. 405224
  21. 592704
  22. 195112
  23. 12167
  24. 132651
  25. 636056
  26. 287496
  27. 778688
  28. 373248
  29. 1728
  30. 857375
  31. 85184
  32. 5832
  33. 68921
  34. 3375
  35. 97336
  36. 300763
  37. 941192
  38. 421875
  39. 166375
  40. 357911

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