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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 946 · 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. 1.52³ =
  2. 2.14³ =
  3. 3.98³ =
  4. 4.77³ =
  5. 5.13³ =
  6. 6.16³ =
  7. 7.91³ =
  8. 8.16³ =
  9. 9.64³ =
  10. 10.93³ =
  11. 11.55³ =
  12. 12.24³ =
  13. 13.68³ =
  14. 14.15³ =
  15. 15.74³ =
  16. 16.86³ =
  17. 17.16³ =
  18. 18.41³ =
  19. 19.13³ =
  20. 20.83³ =
  21. 21.72³ =
  22. 22.51³ =
  23. 23.44³ =
  24. 24.53³ =
  25. 25.89³ =
  26. 26.41³ =
  27. 27.47³ =
  28. 28.84³ =
  29. 29.38³ =
  30. 30.75³ =
  31. 31.69³ =
  32. 32.43³ =
  33. 33.66³ =
  34. 34.84³ =
  35. 35.71³ =
  36. 36.15³ =
  37. 37.75³ =
  38. 38.17³ =
  39. 39.97³ =
  40. 40.93³ =

Answer key

  1. 140608
  2. 2744
  3. 941192
  4. 456533
  5. 2197
  6. 4096
  7. 753571
  8. 4096
  9. 262144
  10. 804357
  11. 166375
  12. 13824
  13. 314432
  14. 3375
  15. 405224
  16. 636056
  17. 4096
  18. 68921
  19. 2197
  20. 571787
  21. 373248
  22. 132651
  23. 85184
  24. 148877
  25. 704969
  26. 68921
  27. 103823
  28. 592704
  29. 54872
  30. 421875
  31. 328509
  32. 79507
  33. 287496
  34. 592704
  35. 357911
  36. 3375
  37. 421875
  38. 4913
  39. 912673
  40. 804357

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