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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 380 · 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. 1.98³ =
  2. 2.53³ =
  3. 3.22³ =
  4. 4.94³ =
  5. 5.43³ =
  6. 6.83³ =
  7. 7.69³ =
  8. 8.18³ =
  9. 9.22³ =
  10. 10.66³ =
  11. 11.66³ =
  12. 12.11³ =
  13. 13.54³ =
  14. 14.76³ =
  15. 15.84³ =
  16. 16.54³ =
  17. 17.51³ =
  18. 18.17³ =
  19. 19.31³ =
  20. 20.33³ =
  21. 21.36³ =
  22. 22.52³ =
  23. 23.41³ =
  24. 24.82³ =
  25. 25.16³ =
  26. 26.59³ =
  27. 27.22³ =
  28. 28.11³ =
  29. 29.32³ =
  30. 30.72³ =
  31. 31.85³ =
  32. 32.39³ =
  33. 33.53³ =
  34. 34.81³ =
  35. 35.35³ =
  36. 36.31³ =
  37. 37.95³ =
  38. 38.21³ =
  39. 39.91³ =
  40. 40.18³ =

Answer key

  1. 941192
  2. 148877
  3. 10648
  4. 830584
  5. 79507
  6. 571787
  7. 328509
  8. 5832
  9. 10648
  10. 287496
  11. 287496
  12. 1331
  13. 157464
  14. 438976
  15. 592704
  16. 157464
  17. 132651
  18. 4913
  19. 29791
  20. 35937
  21. 46656
  22. 140608
  23. 68921
  24. 551368
  25. 4096
  26. 205379
  27. 10648
  28. 1331
  29. 32768
  30. 373248
  31. 614125
  32. 59319
  33. 148877
  34. 531441
  35. 42875
  36. 29791
  37. 857375
  38. 9261
  39. 753571
  40. 5832

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