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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 245 · 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. 1.27³ =
  2. 2.75³ =
  3. 3.94³ =
  4. 4.24³ =
  5. 5.29³ =
  6. 6.36³ =
  7. 7.69³ =
  8. 8.48³ =
  9. 9.82³ =
  10. 10.71³ =
  11. 11.18³ =
  12. 12.69³ =
  13. 13.58³ =
  14. 14.52³ =
  15. 15.98³ =
  16. 16.41³ =
  17. 17.71³ =
  18. 18.77³ =
  19. 19.18³ =
  20. 20.71³ =
  21. 21.91³ =
  22. 22.41³ =
  23. 23.95³ =
  24. 24.68³ =
  25. 25.21³ =
  26. 26.36³ =
  27. 27.17³ =
  28. 28.61³ =
  29. 29.52³ =
  30. 30.28³ =
  31. 31.14³ =
  32. 32.95³ =
  33. 33.71³ =
  34. 34.82³ =
  35. 35.59³ =
  36. 36.11³ =
  37. 37.81³ =
  38. 38.58³ =
  39. 39.59³ =
  40. 40.81³ =

Answer key

  1. 19683
  2. 421875
  3. 830584
  4. 13824
  5. 24389
  6. 46656
  7. 328509
  8. 110592
  9. 551368
  10. 357911
  11. 5832
  12. 328509
  13. 195112
  14. 140608
  15. 941192
  16. 68921
  17. 357911
  18. 456533
  19. 5832
  20. 357911
  21. 753571
  22. 68921
  23. 857375
  24. 314432
  25. 9261
  26. 46656
  27. 4913
  28. 226981
  29. 140608
  30. 21952
  31. 2744
  32. 857375
  33. 357911
  34. 551368
  35. 205379
  36. 1331
  37. 531441
  38. 195112
  39. 205379
  40. 531441

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