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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 459 · 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. 1.42³ =
  2. 2.45³ =
  3. 3.22³ =
  4. 4.76³ =
  5. 5.29³ =
  6. 6.51³ =
  7. 7.95³ =
  8. 8.53³ =
  9. 9.14³ =
  10. 10.74³ =
  11. 11.61³ =
  12. 12.25³ =
  13. 13.13³ =
  14. 14.11³ =
  15. 15.84³ =
  16. 16.71³ =
  17. 17.63³ =
  18. 18.48³ =
  19. 19.64³ =
  20. 20.21³ =
  21. 21.83³ =
  22. 22.83³ =
  23. 23.86³ =
  24. 24.34³ =
  25. 25.56³ =
  26. 26.21³ =
  27. 27.76³ =
  28. 28.19³ =
  29. 29.87³ =
  30. 30.63³ =
  31. 31.12³ =
  32. 32.55³ =
  33. 33.87³ =
  34. 34.69³ =
  35. 35.34³ =
  36. 36.72³ =
  37. 37.88³ =
  38. 38.23³ =
  39. 39.75³ =
  40. 40.31³ =

Answer key

  1. 74088
  2. 91125
  3. 10648
  4. 438976
  5. 24389
  6. 132651
  7. 857375
  8. 148877
  9. 2744
  10. 405224
  11. 226981
  12. 15625
  13. 2197
  14. 1331
  15. 592704
  16. 357911
  17. 250047
  18. 110592
  19. 262144
  20. 9261
  21. 571787
  22. 571787
  23. 636056
  24. 39304
  25. 175616
  26. 9261
  27. 438976
  28. 6859
  29. 658503
  30. 250047
  31. 1728
  32. 166375
  33. 658503
  34. 328509
  35. 39304
  36. 373248
  37. 681472
  38. 12167
  39. 421875
  40. 29791

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