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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 144 · 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. 1.51³ =
  2. 2.49³ =
  3. 3.21³ =
  4. 4.83³ =
  5. 5.16³ =
  6. 6.88³ =
  7. 7.43³ =
  8. 8.36³ =
  9. 9.28³ =
  10. 10.32³ =
  11. 11.18³ =
  12. 12.31³ =
  13. 13.61³ =
  14. 14.58³ =
  15. 15.75³ =
  16. 16.31³ =
  17. 17.78³ =
  18. 18.16³ =
  19. 19.82³ =
  20. 20.36³ =
  21. 21.13³ =
  22. 22.85³ =
  23. 23.42³ =
  24. 24.19³ =
  25. 25.46³ =
  26. 26.61³ =
  27. 27.89³ =
  28. 28.63³ =
  29. 29.76³ =
  30. 30.87³ =
  31. 31.49³ =
  32. 32.75³ =
  33. 33.45³ =
  34. 34.89³ =
  35. 35.79³ =
  36. 36.81³ =
  37. 37.24³ =
  38. 38.25³ =
  39. 39.49³ =
  40. 40.67³ =

Answer key

  1. 132651
  2. 117649
  3. 9261
  4. 571787
  5. 4096
  6. 681472
  7. 79507
  8. 46656
  9. 21952
  10. 32768
  11. 5832
  12. 29791
  13. 226981
  14. 195112
  15. 421875
  16. 29791
  17. 474552
  18. 4096
  19. 551368
  20. 46656
  21. 2197
  22. 614125
  23. 74088
  24. 6859
  25. 97336
  26. 226981
  27. 704969
  28. 250047
  29. 438976
  30. 658503
  31. 117649
  32. 421875
  33. 91125
  34. 704969
  35. 493039
  36. 531441
  37. 13824
  38. 15625
  39. 117649
  40. 300763

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