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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 742 · 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. 1.26³ =
  2. 2.15³ =
  3. 3.74³ =
  4. 4.85³ =
  5. 5.91³ =
  6. 6.56³ =
  7. 7.85³ =
  8. 8.26³ =
  9. 9.31³ =
  10. 10.63³ =
  11. 11.41³ =
  12. 12.84³ =
  13. 13.56³ =
  14. 14.77³ =
  15. 15.77³ =
  16. 16.61³ =
  17. 17.62³ =
  18. 18.42³ =
  19. 19.94³ =
  20. 20.33³ =
  21. 21.21³ =
  22. 22.92³ =
  23. 23.17³ =
  24. 24.17³ =
  25. 25.79³ =
  26. 26.46³ =
  27. 27.58³ =
  28. 28.45³ =
  29. 29.65³ =
  30. 30.36³ =
  31. 31.39³ =
  32. 32.56³ =
  33. 33.72³ =
  34. 34.25³ =
  35. 35.48³ =
  36. 36.68³ =
  37. 37.94³ =
  38. 38.29³ =
  39. 39.15³ =
  40. 40.34³ =

Answer key

  1. 17576
  2. 3375
  3. 405224
  4. 614125
  5. 753571
  6. 175616
  7. 614125
  8. 17576
  9. 29791
  10. 250047
  11. 68921
  12. 592704
  13. 175616
  14. 456533
  15. 456533
  16. 226981
  17. 238328
  18. 74088
  19. 830584
  20. 35937
  21. 9261
  22. 778688
  23. 4913
  24. 4913
  25. 493039
  26. 97336
  27. 195112
  28. 91125
  29. 274625
  30. 46656
  31. 59319
  32. 175616
  33. 373248
  34. 15625
  35. 110592
  36. 314432
  37. 830584
  38. 24389
  39. 3375
  40. 39304

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