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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 93 · 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. 1.23³ =
  2. 2.89³ =
  3. 3.41³ =
  4. 4.11³ =
  5. 5.22³ =
  6. 6.11³ =
  7. 7.57³ =
  8. 8.58³ =
  9. 9.92³ =
  10. 10.67³ =
  11. 11.77³ =
  12. 12.27³ =
  13. 13.27³ =
  14. 14.23³ =
  15. 15.92³ =
  16. 16.88³ =
  17. 17.86³ =
  18. 18.87³ =
  19. 19.37³ =
  20. 20.26³ =
  21. 21.39³ =
  22. 22.78³ =
  23. 23.21³ =
  24. 24.26³ =
  25. 25.98³ =
  26. 26.12³ =
  27. 27.76³ =
  28. 28.62³ =
  29. 29.23³ =
  30. 30.33³ =
  31. 31.69³ =
  32. 32.24³ =
  33. 33.12³ =
  34. 34.41³ =
  35. 35.96³ =
  36. 36.61³ =
  37. 37.19³ =
  38. 38.85³ =
  39. 39.73³ =
  40. 40.83³ =

Answer key

  1. 12167
  2. 704969
  3. 68921
  4. 1331
  5. 10648
  6. 1331
  7. 185193
  8. 195112
  9. 778688
  10. 300763
  11. 456533
  12. 19683
  13. 19683
  14. 12167
  15. 778688
  16. 681472
  17. 636056
  18. 658503
  19. 50653
  20. 17576
  21. 59319
  22. 474552
  23. 9261
  24. 17576
  25. 941192
  26. 1728
  27. 438976
  28. 238328
  29. 12167
  30. 35937
  31. 328509
  32. 13824
  33. 1728
  34. 68921
  35. 884736
  36. 226981
  37. 6859
  38. 614125
  39. 389017
  40. 571787

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