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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 737 · 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. 1.92³ =
  2. 2.62³ =
  3. 3.78³ =
  4. 4.47³ =
  5. 5.12³ =
  6. 6.28³ =
  7. 7.42³ =
  8. 8.81³ =
  9. 9.87³ =
  10. 10.32³ =
  11. 11.26³ =
  12. 12.86³ =
  13. 13.24³ =
  14. 14.91³ =
  15. 15.44³ =
  16. 16.78³ =
  17. 17.81³ =
  18. 18.99³ =
  19. 19.38³ =
  20. 20.34³ =
  21. 21.29³ =
  22. 22.84³ =
  23. 23.86³ =
  24. 24.32³ =
  25. 25.38³ =
  26. 26.25³ =
  27. 27.72³ =
  28. 28.58³ =
  29. 29.31³ =
  30. 30.24³ =
  31. 31.62³ =
  32. 32.76³ =
  33. 33.66³ =
  34. 34.24³ =
  35. 35.18³ =
  36. 36.34³ =
  37. 37.12³ =
  38. 38.37³ =
  39. 39.71³ =
  40. 40.53³ =

Answer key

  1. 778688
  2. 238328
  3. 474552
  4. 103823
  5. 1728
  6. 21952
  7. 74088
  8. 531441
  9. 658503
  10. 32768
  11. 17576
  12. 636056
  13. 13824
  14. 753571
  15. 85184
  16. 474552
  17. 531441
  18. 970299
  19. 54872
  20. 39304
  21. 24389
  22. 592704
  23. 636056
  24. 32768
  25. 54872
  26. 15625
  27. 373248
  28. 195112
  29. 29791
  30. 13824
  31. 238328
  32. 438976
  33. 287496
  34. 13824
  35. 5832
  36. 39304
  37. 1728
  38. 50653
  39. 357911
  40. 148877

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