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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 141 · 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. 1.26³ =
  2. 2.35³ =
  3. 3.61³ =
  4. 4.66³ =
  5. 5.29³ =
  6. 6.68³ =
  7. 7.97³ =
  8. 8.95³ =
  9. 9.38³ =
  10. 10.68³ =
  11. 11.61³ =
  12. 12.45³ =
  13. 13.77³ =
  14. 14.45³ =
  15. 15.76³ =
  16. 16.66³ =
  17. 17.92³ =
  18. 18.59³ =
  19. 19.99³ =
  20. 20.72³ =
  21. 21.51³ =
  22. 22.69³ =
  23. 23.31³ =
  24. 24.26³ =
  25. 25.56³ =
  26. 26.85³ =
  27. 27.76³ =
  28. 28.16³ =
  29. 29.17³ =
  30. 30.43³ =
  31. 31.19³ =
  32. 32.49³ =
  33. 33.48³ =
  34. 34.81³ =
  35. 35.26³ =
  36. 36.65³ =
  37. 37.97³ =
  38. 38.68³ =
  39. 39.54³ =
  40. 40.51³ =

Answer key

  1. 17576
  2. 42875
  3. 226981
  4. 287496
  5. 24389
  6. 314432
  7. 912673
  8. 857375
  9. 54872
  10. 314432
  11. 226981
  12. 91125
  13. 456533
  14. 91125
  15. 438976
  16. 287496
  17. 778688
  18. 205379
  19. 970299
  20. 373248
  21. 132651
  22. 328509
  23. 29791
  24. 17576
  25. 175616
  26. 614125
  27. 438976
  28. 4096
  29. 4913
  30. 79507
  31. 6859
  32. 117649
  33. 110592
  34. 531441
  35. 17576
  36. 274625
  37. 912673
  38. 314432
  39. 157464
  40. 132651

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