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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 861 · 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. 1.67³ =
  2. 2.18³ =
  3. 3.44³ =
  4. 4.81³ =
  5. 5.31³ =
  6. 6.76³ =
  7. 7.14³ =
  8. 8.21³ =
  9. 9.53³ =
  10. 10.91³ =
  11. 11.23³ =
  12. 12.87³ =
  13. 13.41³ =
  14. 14.52³ =
  15. 15.13³ =
  16. 16.45³ =
  17. 17.85³ =
  18. 18.42³ =
  19. 19.97³ =
  20. 20.74³ =
  21. 21.17³ =
  22. 22.18³ =
  23. 23.63³ =
  24. 24.31³ =
  25. 25.41³ =
  26. 26.97³ =
  27. 27.44³ =
  28. 28.69³ =
  29. 29.55³ =
  30. 30.28³ =
  31. 31.29³ =
  32. 32.77³ =
  33. 33.29³ =
  34. 34.14³ =
  35. 35.23³ =
  36. 36.58³ =
  37. 37.86³ =
  38. 38.73³ =
  39. 39.77³ =
  40. 40.33³ =

Answer key

  1. 300763
  2. 5832
  3. 85184
  4. 531441
  5. 29791
  6. 438976
  7. 2744
  8. 9261
  9. 148877
  10. 753571
  11. 12167
  12. 658503
  13. 68921
  14. 140608
  15. 2197
  16. 91125
  17. 614125
  18. 74088
  19. 912673
  20. 405224
  21. 4913
  22. 5832
  23. 250047
  24. 29791
  25. 68921
  26. 912673
  27. 85184
  28. 328509
  29. 166375
  30. 21952
  31. 24389
  32. 456533
  33. 24389
  34. 2744
  35. 12167
  36. 195112
  37. 636056
  38. 389017
  39. 456533
  40. 35937

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