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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 894 · 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. 1.97³ =
  2. 2.87³ =
  3. 3.13³ =
  4. 4.46³ =
  5. 5.13³ =
  6. 6.53³ =
  7. 7.53³ =
  8. 8.95³ =
  9. 9.44³ =
  10. 10.31³ =
  11. 11.12³ =
  12. 12.61³ =
  13. 13.22³ =
  14. 14.96³ =
  15. 15.21³ =
  16. 16.13³ =
  17. 17.97³ =
  18. 18.46³ =
  19. 19.26³ =
  20. 20.33³ =
  21. 21.79³ =
  22. 22.84³ =
  23. 23.92³ =
  24. 24.55³ =
  25. 25.31³ =
  26. 26.73³ =
  27. 27.51³ =
  28. 28.94³ =
  29. 29.69³ =
  30. 30.36³ =
  31. 31.21³ =
  32. 32.11³ =
  33. 33.91³ =
  34. 34.48³ =
  35. 35.61³ =
  36. 36.85³ =
  37. 37.71³ =
  38. 38.17³ =
  39. 39.57³ =
  40. 40.15³ =

Answer key

  1. 912673
  2. 658503
  3. 2197
  4. 97336
  5. 2197
  6. 148877
  7. 148877
  8. 857375
  9. 85184
  10. 29791
  11. 1728
  12. 226981
  13. 10648
  14. 884736
  15. 9261
  16. 2197
  17. 912673
  18. 97336
  19. 17576
  20. 35937
  21. 493039
  22. 592704
  23. 778688
  24. 166375
  25. 29791
  26. 389017
  27. 132651
  28. 830584
  29. 328509
  30. 46656
  31. 9261
  32. 1331
  33. 753571
  34. 110592
  35. 226981
  36. 614125
  37. 357911
  38. 4913
  39. 185193
  40. 3375

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