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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 369 · 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. 1.48³ =
  2. 2.44³ =
  3. 3.26³ =
  4. 4.64³ =
  5. 5.76³ =
  6. 6.44³ =
  7. 7.88³ =
  8. 8.28³ =
  9. 9.66³ =
  10. 10.85³ =
  11. 11.95³ =
  12. 12.35³ =
  13. 13.61³ =
  14. 14.27³ =
  15. 15.12³ =
  16. 16.53³ =
  17. 17.61³ =
  18. 18.91³ =
  19. 19.69³ =
  20. 20.82³ =
  21. 21.48³ =
  22. 22.71³ =
  23. 23.36³ =
  24. 24.99³ =
  25. 25.24³ =
  26. 26.55³ =
  27. 27.61³ =
  28. 28.16³ =
  29. 29.55³ =
  30. 30.96³ =
  31. 31.23³ =
  32. 32.19³ =
  33. 33.89³ =
  34. 34.54³ =
  35. 35.84³ =
  36. 36.71³ =
  37. 37.88³ =
  38. 38.23³ =
  39. 39.41³ =
  40. 40.68³ =

Answer key

  1. 110592
  2. 85184
  3. 17576
  4. 262144
  5. 438976
  6. 85184
  7. 681472
  8. 21952
  9. 287496
  10. 614125
  11. 857375
  12. 42875
  13. 226981
  14. 19683
  15. 1728
  16. 148877
  17. 226981
  18. 753571
  19. 328509
  20. 551368
  21. 110592
  22. 357911
  23. 46656
  24. 970299
  25. 13824
  26. 166375
  27. 226981
  28. 4096
  29. 166375
  30. 884736
  31. 12167
  32. 6859
  33. 704969
  34. 157464
  35. 592704
  36. 357911
  37. 681472
  38. 12167
  39. 68921
  40. 314432

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