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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 571 · 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. 1.17³ =
  2. 2.33³ =
  3. 3.88³ =
  4. 4.85³ =
  5. 5.73³ =
  6. 6.75³ =
  7. 7.76³ =
  8. 8.95³ =
  9. 9.32³ =
  10. 10.49³ =
  11. 11.27³ =
  12. 12.31³ =
  13. 13.26³ =
  14. 14.53³ =
  15. 15.31³ =
  16. 16.41³ =
  17. 17.71³ =
  18. 18.44³ =
  19. 19.17³ =
  20. 20.48³ =
  21. 21.41³ =
  22. 22.35³ =
  23. 23.71³ =
  24. 24.22³ =
  25. 25.71³ =
  26. 26.92³ =
  27. 27.57³ =
  28. 28.77³ =
  29. 29.21³ =
  30. 30.31³ =
  31. 31.91³ =
  32. 32.27³ =
  33. 33.31³ =
  34. 34.78³ =
  35. 35.83³ =
  36. 36.11³ =
  37. 37.25³ =
  38. 38.42³ =
  39. 39.77³ =
  40. 40.67³ =

Answer key

  1. 4913
  2. 35937
  3. 681472
  4. 614125
  5. 389017
  6. 421875
  7. 438976
  8. 857375
  9. 32768
  10. 117649
  11. 19683
  12. 29791
  13. 17576
  14. 148877
  15. 29791
  16. 68921
  17. 357911
  18. 85184
  19. 4913
  20. 110592
  21. 68921
  22. 42875
  23. 357911
  24. 10648
  25. 357911
  26. 778688
  27. 185193
  28. 456533
  29. 9261
  30. 29791
  31. 753571
  32. 19683
  33. 29791
  34. 474552
  35. 571787
  36. 1331
  37. 15625
  38. 74088
  39. 456533
  40. 300763

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