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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 575 · 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. 1.31³ =
  2. 2.97³ =
  3. 3.92³ =
  4. 4.62³ =
  5. 5.66³ =
  6. 6.22³ =
  7. 7.57³ =
  8. 8.82³ =
  9. 9.37³ =
  10. 10.92³ =
  11. 11.29³ =
  12. 12.45³ =
  13. 13.87³ =
  14. 14.97³ =
  15. 15.74³ =
  16. 16.22³ =
  17. 17.48³ =
  18. 18.56³ =
  19. 19.61³ =
  20. 20.22³ =
  21. 21.22³ =
  22. 22.31³ =
  23. 23.44³ =
  24. 24.64³ =
  25. 25.82³ =
  26. 26.28³ =
  27. 27.28³ =
  28. 28.16³ =
  29. 29.78³ =
  30. 30.65³ =
  31. 31.61³ =
  32. 32.51³ =
  33. 33.65³ =
  34. 34.76³ =
  35. 35.24³ =
  36. 36.69³ =
  37. 37.13³ =
  38. 38.39³ =
  39. 39.22³ =
  40. 40.96³ =

Answer key

  1. 29791
  2. 912673
  3. 778688
  4. 238328
  5. 287496
  6. 10648
  7. 185193
  8. 551368
  9. 50653
  10. 778688
  11. 24389
  12. 91125
  13. 658503
  14. 912673
  15. 405224
  16. 10648
  17. 110592
  18. 175616
  19. 226981
  20. 10648
  21. 10648
  22. 29791
  23. 85184
  24. 262144
  25. 551368
  26. 21952
  27. 21952
  28. 4096
  29. 474552
  30. 274625
  31. 226981
  32. 132651
  33. 274625
  34. 438976
  35. 13824
  36. 328509
  37. 2197
  38. 59319
  39. 10648
  40. 884736

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