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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 794 · 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. 1.71³ =
  2. 2.91³ =
  3. 3.79³ =
  4. 4.54³ =
  5. 5.62³ =
  6. 6.31³ =
  7. 7.26³ =
  8. 8.94³ =
  9. 9.13³ =
  10. 10.66³ =
  11. 11.79³ =
  12. 12.65³ =
  13. 13.76³ =
  14. 14.31³ =
  15. 15.48³ =
  16. 16.49³ =
  17. 17.99³ =
  18. 18.53³ =
  19. 19.78³ =
  20. 20.42³ =
  21. 21.51³ =
  22. 22.68³ =
  23. 23.14³ =
  24. 24.17³ =
  25. 25.99³ =
  26. 26.24³ =
  27. 27.16³ =
  28. 28.22³ =
  29. 29.22³ =
  30. 30.63³ =
  31. 31.74³ =
  32. 32.94³ =
  33. 33.73³ =
  34. 34.65³ =
  35. 35.47³ =
  36. 36.76³ =
  37. 37.18³ =
  38. 38.21³ =
  39. 39.91³ =
  40. 40.88³ =

Answer key

  1. 357911
  2. 753571
  3. 493039
  4. 157464
  5. 238328
  6. 29791
  7. 17576
  8. 830584
  9. 2197
  10. 287496
  11. 493039
  12. 274625
  13. 438976
  14. 29791
  15. 110592
  16. 117649
  17. 970299
  18. 148877
  19. 474552
  20. 74088
  21. 132651
  22. 314432
  23. 2744
  24. 4913
  25. 970299
  26. 13824
  27. 4096
  28. 10648
  29. 10648
  30. 250047
  31. 405224
  32. 830584
  33. 389017
  34. 274625
  35. 103823
  36. 438976
  37. 5832
  38. 9261
  39. 753571
  40. 681472

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