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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 726 · 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. 2.93³ =
  3. 3.52³ =
  4. 4.11³ =
  5. 5.32³ =
  6. 6.92³ =
  7. 7.82³ =
  8. 8.57³ =
  9. 9.24³ =
  10. 10.43³ =
  11. 11.55³ =
  12. 12.51³ =
  13. 13.32³ =
  14. 14.95³ =
  15. 15.33³ =
  16. 16.88³ =
  17. 17.28³ =
  18. 18.98³ =
  19. 19.23³ =
  20. 20.88³ =
  21. 21.62³ =
  22. 22.76³ =
  23. 23.24³ =
  24. 24.81³ =
  25. 25.61³ =
  26. 26.18³ =
  27. 27.54³ =
  28. 28.69³ =
  29. 29.55³ =
  30. 30.71³ =
  31. 31.37³ =
  32. 32.99³ =
  33. 33.22³ =
  34. 34.52³ =
  35. 35.83³ =
  36. 36.76³ =
  37. 37.16³ =
  38. 38.18³ =
  39. 39.28³ =
  40. 40.67³ =

Answer key

  1. 12167
  2. 804357
  3. 140608
  4. 1331
  5. 32768
  6. 778688
  7. 551368
  8. 185193
  9. 13824
  10. 79507
  11. 166375
  12. 132651
  13. 32768
  14. 857375
  15. 35937
  16. 681472
  17. 21952
  18. 941192
  19. 12167
  20. 681472
  21. 238328
  22. 438976
  23. 13824
  24. 531441
  25. 226981
  26. 5832
  27. 157464
  28. 328509
  29. 166375
  30. 357911
  31. 50653
  32. 970299
  33. 10648
  34. 140608
  35. 571787
  36. 438976
  37. 4096
  38. 5832
  39. 21952
  40. 300763

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