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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 907 · 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. 1.19³ =
  2. 2.44³ =
  3. 3.25³ =
  4. 4.43³ =
  5. 5.91³ =
  6. 6.41³ =
  7. 7.28³ =
  8. 8.71³ =
  9. 9.46³ =
  10. 10.11³ =
  11. 11.71³ =
  12. 12.84³ =
  13. 13.91³ =
  14. 14.54³ =
  15. 15.23³ =
  16. 16.68³ =
  17. 17.78³ =
  18. 18.15³ =
  19. 19.35³ =
  20. 20.36³ =
  21. 21.58³ =
  22. 22.31³ =
  23. 23.11³ =
  24. 24.82³ =
  25. 25.38³ =
  26. 26.55³ =
  27. 27.75³ =
  28. 28.88³ =
  29. 29.28³ =
  30. 30.63³ =
  31. 31.16³ =
  32. 32.49³ =
  33. 33.31³ =
  34. 34.28³ =
  35. 35.33³ =
  36. 36.91³ =
  37. 37.91³ =
  38. 38.64³ =
  39. 39.72³ =
  40. 40.99³ =

Answer key

  1. 6859
  2. 85184
  3. 15625
  4. 79507
  5. 753571
  6. 68921
  7. 21952
  8. 357911
  9. 97336
  10. 1331
  11. 357911
  12. 592704
  13. 753571
  14. 157464
  15. 12167
  16. 314432
  17. 474552
  18. 3375
  19. 42875
  20. 46656
  21. 195112
  22. 29791
  23. 1331
  24. 551368
  25. 54872
  26. 166375
  27. 421875
  28. 681472
  29. 21952
  30. 250047
  31. 4096
  32. 117649
  33. 29791
  34. 21952
  35. 35937
  36. 753571
  37. 753571
  38. 262144
  39. 373248
  40. 970299

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