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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 630 · 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. 1.32³ =
  2. 2.87³ =
  3. 3.47³ =
  4. 4.19³ =
  5. 5.72³ =
  6. 6.69³ =
  7. 7.41³ =
  8. 8.67³ =
  9. 9.18³ =
  10. 10.24³ =
  11. 11.59³ =
  12. 12.55³ =
  13. 13.53³ =
  14. 14.44³ =
  15. 15.84³ =
  16. 16.18³ =
  17. 17.78³ =
  18. 18.41³ =
  19. 19.46³ =
  20. 20.22³ =
  21. 21.68³ =
  22. 22.29³ =
  23. 23.76³ =
  24. 24.86³ =
  25. 25.72³ =
  26. 26.27³ =
  27. 27.69³ =
  28. 28.32³ =
  29. 29.66³ =
  30. 30.45³ =
  31. 31.38³ =
  32. 32.21³ =
  33. 33.92³ =
  34. 34.31³ =
  35. 35.71³ =
  36. 36.25³ =
  37. 37.91³ =
  38. 38.85³ =
  39. 39.81³ =
  40. 40.41³ =

Answer key

  1. 32768
  2. 658503
  3. 103823
  4. 6859
  5. 373248
  6. 328509
  7. 68921
  8. 300763
  9. 5832
  10. 13824
  11. 205379
  12. 166375
  13. 148877
  14. 85184
  15. 592704
  16. 5832
  17. 474552
  18. 68921
  19. 97336
  20. 10648
  21. 314432
  22. 24389
  23. 438976
  24. 636056
  25. 373248
  26. 19683
  27. 328509
  28. 32768
  29. 287496
  30. 91125
  31. 54872
  32. 9261
  33. 778688
  34. 29791
  35. 357911
  36. 15625
  37. 753571
  38. 614125
  39. 531441
  40. 68921

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