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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 450 · 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. 2.25³ =
  3. 3.11³ =
  4. 4.19³ =
  5. 5.44³ =
  6. 6.19³ =
  7. 7.78³ =
  8. 8.74³ =
  9. 9.26³ =
  10. 10.99³ =
  11. 11.98³ =
  12. 12.25³ =
  13. 13.13³ =
  14. 14.29³ =
  15. 15.36³ =
  16. 16.39³ =
  17. 17.54³ =
  18. 18.94³ =
  19. 19.46³ =
  20. 20.84³ =
  21. 21.78³ =
  22. 22.22³ =
  23. 23.16³ =
  24. 24.71³ =
  25. 25.67³ =
  26. 26.28³ =
  27. 27.95³ =
  28. 28.87³ =
  29. 29.87³ =
  30. 30.73³ =
  31. 31.16³ =
  32. 32.82³ =
  33. 33.38³ =
  34. 34.77³ =
  35. 35.82³ =
  36. 36.61³ =
  37. 37.76³ =
  38. 38.22³ =
  39. 39.73³ =
  40. 40.91³ =

Answer key

  1. 32768
  2. 15625
  3. 1331
  4. 6859
  5. 85184
  6. 6859
  7. 474552
  8. 405224
  9. 17576
  10. 970299
  11. 941192
  12. 15625
  13. 2197
  14. 24389
  15. 46656
  16. 59319
  17. 157464
  18. 830584
  19. 97336
  20. 592704
  21. 474552
  22. 10648
  23. 4096
  24. 357911
  25. 300763
  26. 21952
  27. 857375
  28. 658503
  29. 658503
  30. 389017
  31. 4096
  32. 551368
  33. 54872
  34. 456533
  35. 551368
  36. 226981
  37. 438976
  38. 10648
  39. 389017
  40. 753571

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