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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 828 · 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. 1.68³ =
  2. 2.61³ =
  3. 3.29³ =
  4. 4.75³ =
  5. 5.94³ =
  6. 6.91³ =
  7. 7.25³ =
  8. 8.15³ =
  9. 9.76³ =
  10. 10.33³ =
  11. 11.18³ =
  12. 12.33³ =
  13. 13.83³ =
  14. 14.41³ =
  15. 15.23³ =
  16. 16.61³ =
  17. 17.31³ =
  18. 18.68³ =
  19. 19.74³ =
  20. 20.51³ =
  21. 21.82³ =
  22. 22.82³ =
  23. 23.21³ =
  24. 24.13³ =
  25. 25.99³ =
  26. 26.32³ =
  27. 27.78³ =
  28. 28.94³ =
  29. 29.21³ =
  30. 30.44³ =
  31. 31.14³ =
  32. 32.61³ =
  33. 33.77³ =
  34. 34.43³ =
  35. 35.84³ =
  36. 36.51³ =
  37. 37.44³ =
  38. 38.68³ =
  39. 39.58³ =
  40. 40.21³ =

Answer key

  1. 314432
  2. 226981
  3. 24389
  4. 421875
  5. 830584
  6. 753571
  7. 15625
  8. 3375
  9. 438976
  10. 35937
  11. 5832
  12. 35937
  13. 571787
  14. 68921
  15. 12167
  16. 226981
  17. 29791
  18. 314432
  19. 405224
  20. 132651
  21. 551368
  22. 551368
  23. 9261
  24. 2197
  25. 970299
  26. 32768
  27. 474552
  28. 830584
  29. 9261
  30. 85184
  31. 2744
  32. 226981
  33. 456533
  34. 79507
  35. 592704
  36. 132651
  37. 85184
  38. 314432
  39. 195112
  40. 9261

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