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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 43 · 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. 1.85³ =
  2. 2.21³ =
  3. 3.61³ =
  4. 4.78³ =
  5. 5.15³ =
  6. 6.86³ =
  7. 7.56³ =
  8. 8.17³ =
  9. 9.13³ =
  10. 10.31³ =
  11. 11.86³ =
  12. 12.32³ =
  13. 13.14³ =
  14. 14.53³ =
  15. 15.71³ =
  16. 16.18³ =
  17. 17.28³ =
  18. 18.96³ =
  19. 19.84³ =
  20. 20.53³ =
  21. 21.35³ =
  22. 22.62³ =
  23. 23.67³ =
  24. 24.22³ =
  25. 25.31³ =
  26. 26.53³ =
  27. 27.72³ =
  28. 28.77³ =
  29. 29.13³ =
  30. 30.72³ =
  31. 31.25³ =
  32. 32.24³ =
  33. 33.64³ =
  34. 34.76³ =
  35. 35.87³ =
  36. 36.76³ =
  37. 37.51³ =
  38. 38.61³ =
  39. 39.16³ =
  40. 40.35³ =

Answer key

  1. 614125
  2. 9261
  3. 226981
  4. 474552
  5. 3375
  6. 636056
  7. 175616
  8. 4913
  9. 2197
  10. 29791
  11. 636056
  12. 32768
  13. 2744
  14. 148877
  15. 357911
  16. 5832
  17. 21952
  18. 884736
  19. 592704
  20. 148877
  21. 42875
  22. 238328
  23. 300763
  24. 10648
  25. 29791
  26. 148877
  27. 373248
  28. 456533
  29. 2197
  30. 373248
  31. 15625
  32. 13824
  33. 262144
  34. 438976
  35. 658503
  36. 438976
  37. 132651
  38. 226981
  39. 4096
  40. 42875

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