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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 305 · 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. 1.56³ =
  2. 2.53³ =
  3. 3.36³ =
  4. 4.49³ =
  5. 5.14³ =
  6. 6.82³ =
  7. 7.13³ =
  8. 8.53³ =
  9. 9.62³ =
  10. 10.51³ =
  11. 11.81³ =
  12. 12.55³ =
  13. 13.54³ =
  14. 14.56³ =
  15. 15.11³ =
  16. 16.67³ =
  17. 17.29³ =
  18. 18.28³ =
  19. 19.44³ =
  20. 20.34³ =
  21. 21.98³ =
  22. 22.17³ =
  23. 23.26³ =
  24. 24.89³ =
  25. 25.18³ =
  26. 26.65³ =
  27. 27.11³ =
  28. 28.25³ =
  29. 29.32³ =
  30. 30.42³ =
  31. 31.77³ =
  32. 32.42³ =
  33. 33.24³ =
  34. 34.41³ =
  35. 35.82³ =
  36. 36.12³ =
  37. 37.91³ =
  38. 38.26³ =
  39. 39.23³ =
  40. 40.99³ =

Answer key

  1. 175616
  2. 148877
  3. 46656
  4. 117649
  5. 2744
  6. 551368
  7. 2197
  8. 148877
  9. 238328
  10. 132651
  11. 531441
  12. 166375
  13. 157464
  14. 175616
  15. 1331
  16. 300763
  17. 24389
  18. 21952
  19. 85184
  20. 39304
  21. 941192
  22. 4913
  23. 17576
  24. 704969
  25. 5832
  26. 274625
  27. 1331
  28. 15625
  29. 32768
  30. 74088
  31. 456533
  32. 74088
  33. 13824
  34. 68921
  35. 551368
  36. 1728
  37. 753571
  38. 17576
  39. 12167
  40. 970299

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