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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 829 · 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. 2.25³ =
  3. 3.31³ =
  4. 4.29³ =
  5. 5.15³ =
  6. 6.28³ =
  7. 7.53³ =
  8. 8.69³ =
  9. 9.27³ =
  10. 10.77³ =
  11. 11.86³ =
  12. 12.69³ =
  13. 13.91³ =
  14. 14.38³ =
  15. 15.13³ =
  16. 16.11³ =
  17. 17.19³ =
  18. 18.55³ =
  19. 19.77³ =
  20. 20.29³ =
  21. 21.44³ =
  22. 22.58³ =
  23. 23.68³ =
  24. 24.51³ =
  25. 25.84³ =
  26. 26.96³ =
  27. 27.89³ =
  28. 28.26³ =
  29. 29.26³ =
  30. 30.15³ =
  31. 31.58³ =
  32. 32.36³ =
  33. 33.64³ =
  34. 34.61³ =
  35. 35.54³ =
  36. 36.62³ =
  37. 37.35³ =
  38. 38.58³ =
  39. 39.51³ =
  40. 40.69³ =

Answer key

  1. 175616
  2. 15625
  3. 29791
  4. 24389
  5. 3375
  6. 21952
  7. 148877
  8. 328509
  9. 19683
  10. 456533
  11. 636056
  12. 328509
  13. 753571
  14. 54872
  15. 2197
  16. 1331
  17. 6859
  18. 166375
  19. 456533
  20. 24389
  21. 85184
  22. 195112
  23. 314432
  24. 132651
  25. 592704
  26. 884736
  27. 704969
  28. 17576
  29. 17576
  30. 3375
  31. 195112
  32. 46656
  33. 262144
  34. 226981
  35. 157464
  36. 238328
  37. 42875
  38. 195112
  39. 132651
  40. 328509

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