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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 248 · 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. 1.13³ =
  2. 2.15³ =
  3. 3.74³ =
  4. 4.24³ =
  5. 5.95³ =
  6. 6.25³ =
  7. 7.42³ =
  8. 8.39³ =
  9. 9.95³ =
  10. 10.41³ =
  11. 11.35³ =
  12. 12.41³ =
  13. 13.23³ =
  14. 14.42³ =
  15. 15.31³ =
  16. 16.49³ =
  17. 17.54³ =
  18. 18.25³ =
  19. 19.18³ =
  20. 20.27³ =
  21. 21.12³ =
  22. 22.34³ =
  23. 23.89³ =
  24. 24.11³ =
  25. 25.57³ =
  26. 26.69³ =
  27. 27.81³ =
  28. 28.67³ =
  29. 29.15³ =
  30. 30.75³ =
  31. 31.43³ =
  32. 32.42³ =
  33. 33.13³ =
  34. 34.62³ =
  35. 35.65³ =
  36. 36.51³ =
  37. 37.66³ =
  38. 38.58³ =
  39. 39.58³ =
  40. 40.19³ =

Answer key

  1. 2197
  2. 3375
  3. 405224
  4. 13824
  5. 857375
  6. 15625
  7. 74088
  8. 59319
  9. 857375
  10. 68921
  11. 42875
  12. 68921
  13. 12167
  14. 74088
  15. 29791
  16. 117649
  17. 157464
  18. 15625
  19. 5832
  20. 19683
  21. 1728
  22. 39304
  23. 704969
  24. 1331
  25. 185193
  26. 328509
  27. 531441
  28. 300763
  29. 3375
  30. 421875
  31. 79507
  32. 74088
  33. 2197
  34. 238328
  35. 274625
  36. 132651
  37. 287496
  38. 195112
  39. 195112
  40. 6859

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