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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 868 · 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. 2.89³ =
  3. 3.19³ =
  4. 4.71³ =
  5. 5.74³ =
  6. 6.79³ =
  7. 7.31³ =
  8. 8.44³ =
  9. 9.76³ =
  10. 10.16³ =
  11. 11.16³ =
  12. 12.94³ =
  13. 13.67³ =
  14. 14.91³ =
  15. 15.47³ =
  16. 16.34³ =
  17. 17.64³ =
  18. 18.36³ =
  19. 19.41³ =
  20. 20.12³ =
  21. 21.79³ =
  22. 22.15³ =
  23. 23.34³ =
  24. 24.54³ =
  25. 25.72³ =
  26. 26.21³ =
  27. 27.55³ =
  28. 28.94³ =
  29. 29.68³ =
  30. 30.94³ =
  31. 31.49³ =
  32. 32.88³ =
  33. 33.38³ =
  34. 34.31³ =
  35. 35.58³ =
  36. 36.35³ =
  37. 37.32³ =
  38. 38.56³ =
  39. 39.26³ =
  40. 40.25³ =

Answer key

  1. 17576
  2. 704969
  3. 6859
  4. 357911
  5. 405224
  6. 493039
  7. 29791
  8. 85184
  9. 438976
  10. 4096
  11. 4096
  12. 830584
  13. 300763
  14. 753571
  15. 103823
  16. 39304
  17. 262144
  18. 46656
  19. 68921
  20. 1728
  21. 493039
  22. 3375
  23. 39304
  24. 157464
  25. 373248
  26. 9261
  27. 166375
  28. 830584
  29. 314432
  30. 830584
  31. 117649
  32. 681472
  33. 54872
  34. 29791
  35. 195112
  36. 42875
  37. 32768
  38. 175616
  39. 17576
  40. 15625

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