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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 431 · 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. 1.15³ =
  2. 2.71³ =
  3. 3.33³ =
  4. 4.61³ =
  5. 5.37³ =
  6. 6.76³ =
  7. 7.12³ =
  8. 8.23³ =
  9. 9.58³ =
  10. 10.14³ =
  11. 11.52³ =
  12. 12.83³ =
  13. 13.82³ =
  14. 14.24³ =
  15. 15.18³ =
  16. 16.96³ =
  17. 17.76³ =
  18. 18.12³ =
  19. 19.38³ =
  20. 20.61³ =
  21. 21.45³ =
  22. 22.13³ =
  23. 23.22³ =
  24. 24.59³ =
  25. 25.19³ =
  26. 26.17³ =
  27. 27.48³ =
  28. 28.95³ =
  29. 29.87³ =
  30. 30.95³ =
  31. 31.88³ =
  32. 32.16³ =
  33. 33.64³ =
  34. 34.32³ =
  35. 35.33³ =
  36. 36.83³ =
  37. 37.41³ =
  38. 38.56³ =
  39. 39.79³ =
  40. 40.15³ =

Answer key

  1. 3375
  2. 357911
  3. 35937
  4. 226981
  5. 50653
  6. 438976
  7. 1728
  8. 12167
  9. 195112
  10. 2744
  11. 140608
  12. 571787
  13. 551368
  14. 13824
  15. 5832
  16. 884736
  17. 438976
  18. 1728
  19. 54872
  20. 226981
  21. 91125
  22. 2197
  23. 10648
  24. 205379
  25. 6859
  26. 4913
  27. 110592
  28. 857375
  29. 658503
  30. 857375
  31. 681472
  32. 4096
  33. 262144
  34. 32768
  35. 35937
  36. 571787
  37. 68921
  38. 175616
  39. 493039
  40. 3375

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