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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 741 · 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. 1.91³ =
  2. 2.69³ =
  3. 3.31³ =
  4. 4.12³ =
  5. 5.82³ =
  6. 6.98³ =
  7. 7.47³ =
  8. 8.71³ =
  9. 9.51³ =
  10. 10.29³ =
  11. 11.11³ =
  12. 12.47³ =
  13. 13.22³ =
  14. 14.48³ =
  15. 15.74³ =
  16. 16.15³ =
  17. 17.27³ =
  18. 18.32³ =
  19. 19.92³ =
  20. 20.78³ =
  21. 21.15³ =
  22. 22.31³ =
  23. 23.91³ =
  24. 24.16³ =
  25. 25.17³ =
  26. 26.75³ =
  27. 27.58³ =
  28. 28.21³ =
  29. 29.23³ =
  30. 30.78³ =
  31. 31.81³ =
  32. 32.47³ =
  33. 33.36³ =
  34. 34.33³ =
  35. 35.69³ =
  36. 36.31³ =
  37. 37.68³ =
  38. 38.26³ =
  39. 39.36³ =
  40. 40.84³ =

Answer key

  1. 753571
  2. 328509
  3. 29791
  4. 1728
  5. 551368
  6. 941192
  7. 103823
  8. 357911
  9. 132651
  10. 24389
  11. 1331
  12. 103823
  13. 10648
  14. 110592
  15. 405224
  16. 3375
  17. 19683
  18. 32768
  19. 778688
  20. 474552
  21. 3375
  22. 29791
  23. 753571
  24. 4096
  25. 4913
  26. 421875
  27. 195112
  28. 9261
  29. 12167
  30. 474552
  31. 531441
  32. 103823
  33. 46656
  34. 35937
  35. 328509
  36. 29791
  37. 314432
  38. 17576
  39. 46656
  40. 592704

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