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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 683 · 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. 1.57³ =
  2. 2.92³ =
  3. 3.82³ =
  4. 4.99³ =
  5. 5.27³ =
  6. 6.11³ =
  7. 7.54³ =
  8. 8.61³ =
  9. 9.68³ =
  10. 10.23³ =
  11. 11.47³ =
  12. 12.74³ =
  13. 13.56³ =
  14. 14.25³ =
  15. 15.35³ =
  16. 16.87³ =
  17. 17.47³ =
  18. 18.74³ =
  19. 19.42³ =
  20. 20.26³ =
  21. 21.12³ =
  22. 22.63³ =
  23. 23.96³ =
  24. 24.31³ =
  25. 25.71³ =
  26. 26.72³ =
  27. 27.77³ =
  28. 28.23³ =
  29. 29.95³ =
  30. 30.38³ =
  31. 31.79³ =
  32. 32.87³ =
  33. 33.37³ =
  34. 34.19³ =
  35. 35.73³ =
  36. 36.18³ =
  37. 37.55³ =
  38. 38.72³ =
  39. 39.95³ =
  40. 40.45³ =

Answer key

  1. 185193
  2. 778688
  3. 551368
  4. 970299
  5. 19683
  6. 1331
  7. 157464
  8. 226981
  9. 314432
  10. 12167
  11. 103823
  12. 405224
  13. 175616
  14. 15625
  15. 42875
  16. 658503
  17. 103823
  18. 405224
  19. 74088
  20. 17576
  21. 1728
  22. 250047
  23. 884736
  24. 29791
  25. 357911
  26. 373248
  27. 456533
  28. 12167
  29. 857375
  30. 54872
  31. 493039
  32. 658503
  33. 50653
  34. 6859
  35. 389017
  36. 5832
  37. 166375
  38. 373248
  39. 857375
  40. 91125

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