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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 193 · 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. 1.77³ =
  2. 2.57³ =
  3. 3.98³ =
  4. 4.18³ =
  5. 5.71³ =
  6. 6.78³ =
  7. 7.31³ =
  8. 8.48³ =
  9. 9.42³ =
  10. 10.74³ =
  11. 11.88³ =
  12. 12.15³ =
  13. 13.34³ =
  14. 14.57³ =
  15. 15.56³ =
  16. 16.18³ =
  17. 17.72³ =
  18. 18.43³ =
  19. 19.99³ =
  20. 20.13³ =
  21. 21.26³ =
  22. 22.39³ =
  23. 23.81³ =
  24. 24.35³ =
  25. 25.23³ =
  26. 26.36³ =
  27. 27.67³ =
  28. 28.57³ =
  29. 29.21³ =
  30. 30.81³ =
  31. 31.75³ =
  32. 32.17³ =
  33. 33.95³ =
  34. 34.98³ =
  35. 35.67³ =
  36. 36.74³ =
  37. 37.92³ =
  38. 38.65³ =
  39. 39.81³ =
  40. 40.92³ =

Answer key

  1. 456533
  2. 185193
  3. 941192
  4. 5832
  5. 357911
  6. 474552
  7. 29791
  8. 110592
  9. 74088
  10. 405224
  11. 681472
  12. 3375
  13. 39304
  14. 185193
  15. 175616
  16. 5832
  17. 373248
  18. 79507
  19. 970299
  20. 2197
  21. 17576
  22. 59319
  23. 531441
  24. 42875
  25. 12167
  26. 46656
  27. 300763
  28. 185193
  29. 9261
  30. 531441
  31. 421875
  32. 4913
  33. 857375
  34. 941192
  35. 300763
  36. 405224
  37. 778688
  38. 274625
  39. 531441
  40. 778688

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