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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 651 · 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. 2.11³ =
  3. 3.15³ =
  4. 4.94³ =
  5. 5.76³ =
  6. 6.13³ =
  7. 7.81³ =
  8. 8.94³ =
  9. 9.65³ =
  10. 10.79³ =
  11. 11.31³ =
  12. 12.52³ =
  13. 13.71³ =
  14. 14.31³ =
  15. 15.78³ =
  16. 16.15³ =
  17. 17.74³ =
  18. 18.44³ =
  19. 19.81³ =
  20. 20.61³ =
  21. 21.84³ =
  22. 22.18³ =
  23. 23.46³ =
  24. 24.55³ =
  25. 25.31³ =
  26. 26.79³ =
  27. 27.51³ =
  28. 28.67³ =
  29. 29.23³ =
  30. 30.72³ =
  31. 31.58³ =
  32. 32.41³ =
  33. 33.46³ =
  34. 34.38³ =
  35. 35.96³ =
  36. 36.41³ =
  37. 37.82³ =
  38. 38.75³ =
  39. 39.77³ =
  40. 40.83³ =

Answer key

  1. 132651
  2. 1331
  3. 3375
  4. 830584
  5. 438976
  6. 2197
  7. 531441
  8. 830584
  9. 274625
  10. 493039
  11. 29791
  12. 140608
  13. 357911
  14. 29791
  15. 474552
  16. 3375
  17. 405224
  18. 85184
  19. 531441
  20. 226981
  21. 592704
  22. 5832
  23. 97336
  24. 166375
  25. 29791
  26. 493039
  27. 132651
  28. 300763
  29. 12167
  30. 373248
  31. 195112
  32. 68921
  33. 97336
  34. 54872
  35. 884736
  36. 68921
  37. 551368
  38. 421875
  39. 456533
  40. 571787

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