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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 481 · 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. 1.73³ =
  2. 2.29³ =
  3. 3.29³ =
  4. 4.82³ =
  5. 5.15³ =
  6. 6.93³ =
  7. 7.88³ =
  8. 8.65³ =
  9. 9.87³ =
  10. 10.18³ =
  11. 11.55³ =
  12. 12.94³ =
  13. 13.61³ =
  14. 14.52³ =
  15. 15.22³ =
  16. 16.19³ =
  17. 17.29³ =
  18. 18.11³ =
  19. 19.14³ =
  20. 20.71³ =
  21. 21.99³ =
  22. 22.95³ =
  23. 23.83³ =
  24. 24.98³ =
  25. 25.88³ =
  26. 26.54³ =
  27. 27.81³ =
  28. 28.57³ =
  29. 29.51³ =
  30. 30.78³ =
  31. 31.42³ =
  32. 32.69³ =
  33. 33.77³ =
  34. 34.74³ =
  35. 35.77³ =
  36. 36.67³ =
  37. 37.87³ =
  38. 38.74³ =
  39. 39.27³ =
  40. 40.77³ =

Answer key

  1. 389017
  2. 24389
  3. 24389
  4. 551368
  5. 3375
  6. 804357
  7. 681472
  8. 274625
  9. 658503
  10. 5832
  11. 166375
  12. 830584
  13. 226981
  14. 140608
  15. 10648
  16. 6859
  17. 24389
  18. 1331
  19. 2744
  20. 357911
  21. 970299
  22. 857375
  23. 571787
  24. 941192
  25. 681472
  26. 157464
  27. 531441
  28. 185193
  29. 132651
  30. 474552
  31. 74088
  32. 328509
  33. 456533
  34. 405224
  35. 456533
  36. 300763
  37. 658503
  38. 405224
  39. 19683
  40. 456533

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