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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 358 · 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. 1.67³ =
  2. 2.99³ =
  3. 3.21³ =
  4. 4.52³ =
  5. 5.45³ =
  6. 6.21³ =
  7. 7.22³ =
  8. 8.84³ =
  9. 9.36³ =
  10. 10.69³ =
  11. 11.84³ =
  12. 12.24³ =
  13. 13.98³ =
  14. 14.77³ =
  15. 15.71³ =
  16. 16.93³ =
  17. 17.46³ =
  18. 18.56³ =
  19. 19.97³ =
  20. 20.66³ =
  21. 21.75³ =
  22. 22.44³ =
  23. 23.93³ =
  24. 24.26³ =
  25. 25.81³ =
  26. 26.11³ =
  27. 27.68³ =
  28. 28.93³ =
  29. 29.42³ =
  30. 30.61³ =
  31. 31.67³ =
  32. 32.28³ =
  33. 33.21³ =
  34. 34.64³ =
  35. 35.87³ =
  36. 36.51³ =
  37. 37.54³ =
  38. 38.85³ =
  39. 39.49³ =
  40. 40.71³ =

Answer key

  1. 300763
  2. 970299
  3. 9261
  4. 140608
  5. 91125
  6. 9261
  7. 10648
  8. 592704
  9. 46656
  10. 328509
  11. 592704
  12. 13824
  13. 941192
  14. 456533
  15. 357911
  16. 804357
  17. 97336
  18. 175616
  19. 912673
  20. 287496
  21. 421875
  22. 85184
  23. 804357
  24. 17576
  25. 531441
  26. 1331
  27. 314432
  28. 804357
  29. 74088
  30. 226981
  31. 300763
  32. 21952
  33. 9261
  34. 262144
  35. 658503
  36. 132651
  37. 157464
  38. 614125
  39. 117649
  40. 357911

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