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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 187 · 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. 1.55³ =
  2. 2.72³ =
  3. 3.67³ =
  4. 4.88³ =
  5. 5.79³ =
  6. 6.41³ =
  7. 7.33³ =
  8. 8.82³ =
  9. 9.69³ =
  10. 10.69³ =
  11. 11.72³ =
  12. 12.81³ =
  13. 13.33³ =
  14. 14.16³ =
  15. 15.89³ =
  16. 16.12³ =
  17. 17.91³ =
  18. 18.93³ =
  19. 19.51³ =
  20. 20.27³ =
  21. 21.85³ =
  22. 22.54³ =
  23. 23.92³ =
  24. 24.56³ =
  25. 25.49³ =
  26. 26.95³ =
  27. 27.16³ =
  28. 28.41³ =
  29. 29.76³ =
  30. 30.94³ =
  31. 31.16³ =
  32. 32.41³ =
  33. 33.26³ =
  34. 34.65³ =
  35. 35.48³ =
  36. 36.89³ =
  37. 37.95³ =
  38. 38.28³ =
  39. 39.83³ =
  40. 40.37³ =

Answer key

  1. 166375
  2. 373248
  3. 300763
  4. 681472
  5. 493039
  6. 68921
  7. 35937
  8. 551368
  9. 328509
  10. 328509
  11. 373248
  12. 531441
  13. 35937
  14. 4096
  15. 704969
  16. 1728
  17. 753571
  18. 804357
  19. 132651
  20. 19683
  21. 614125
  22. 157464
  23. 778688
  24. 175616
  25. 117649
  26. 857375
  27. 4096
  28. 68921
  29. 438976
  30. 830584
  31. 4096
  32. 68921
  33. 17576
  34. 274625
  35. 110592
  36. 704969
  37. 857375
  38. 21952
  39. 571787
  40. 50653

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