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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 903 · 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. 2.51³ =
  3. 3.28³ =
  4. 4.91³ =
  5. 5.88³ =
  6. 6.53³ =
  7. 7.58³ =
  8. 8.89³ =
  9. 9.37³ =
  10. 10.48³ =
  11. 11.41³ =
  12. 12.63³ =
  13. 13.81³ =
  14. 14.48³ =
  15. 15.15³ =
  16. 16.77³ =
  17. 17.42³ =
  18. 18.58³ =
  19. 19.56³ =
  20. 20.58³ =
  21. 21.76³ =
  22. 22.91³ =
  23. 23.45³ =
  24. 24.11³ =
  25. 25.12³ =
  26. 26.13³ =
  27. 27.25³ =
  28. 28.25³ =
  29. 29.64³ =
  30. 30.12³ =
  31. 31.74³ =
  32. 32.87³ =
  33. 33.43³ =
  34. 34.11³ =
  35. 35.71³ =
  36. 36.17³ =
  37. 37.79³ =
  38. 38.78³ =
  39. 39.34³ =
  40. 40.63³ =

Answer key

  1. 3375
  2. 132651
  3. 21952
  4. 753571
  5. 681472
  6. 148877
  7. 195112
  8. 704969
  9. 50653
  10. 110592
  11. 68921
  12. 250047
  13. 531441
  14. 110592
  15. 3375
  16. 456533
  17. 74088
  18. 195112
  19. 175616
  20. 195112
  21. 438976
  22. 753571
  23. 91125
  24. 1331
  25. 1728
  26. 2197
  27. 15625
  28. 15625
  29. 262144
  30. 1728
  31. 405224
  32. 658503
  33. 79507
  34. 1331
  35. 357911
  36. 4913
  37. 493039
  38. 474552
  39. 39304
  40. 250047

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