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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 656 · 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. 1.62³ =
  2. 2.78³ =
  3. 3.95³ =
  4. 4.92³ =
  5. 5.31³ =
  6. 6.74³ =
  7. 7.81³ =
  8. 8.99³ =
  9. 9.71³ =
  10. 10.72³ =
  11. 11.48³ =
  12. 12.76³ =
  13. 13.18³ =
  14. 14.79³ =
  15. 15.83³ =
  16. 16.41³ =
  17. 17.64³ =
  18. 18.97³ =
  19. 19.33³ =
  20. 20.94³ =
  21. 21.33³ =
  22. 22.92³ =
  23. 23.63³ =
  24. 24.54³ =
  25. 25.33³ =
  26. 26.33³ =
  27. 27.25³ =
  28. 28.11³ =
  29. 29.96³ =
  30. 30.99³ =
  31. 31.79³ =
  32. 32.72³ =
  33. 33.91³ =
  34. 34.72³ =
  35. 35.84³ =
  36. 36.38³ =
  37. 37.77³ =
  38. 38.68³ =
  39. 39.82³ =
  40. 40.51³ =

Answer key

  1. 238328
  2. 474552
  3. 857375
  4. 778688
  5. 29791
  6. 405224
  7. 531441
  8. 970299
  9. 357911
  10. 373248
  11. 110592
  12. 438976
  13. 5832
  14. 493039
  15. 571787
  16. 68921
  17. 262144
  18. 912673
  19. 35937
  20. 830584
  21. 35937
  22. 778688
  23. 250047
  24. 157464
  25. 35937
  26. 35937
  27. 15625
  28. 1331
  29. 884736
  30. 970299
  31. 493039
  32. 373248
  33. 753571
  34. 373248
  35. 592704
  36. 54872
  37. 456533
  38. 314432
  39. 551368
  40. 132651

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