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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 757 · 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. 1.28³ =
  2. 2.27³ =
  3. 3.26³ =
  4. 4.57³ =
  5. 5.51³ =
  6. 6.73³ =
  7. 7.58³ =
  8. 8.29³ =
  9. 9.59³ =
  10. 10.46³ =
  11. 11.75³ =
  12. 12.55³ =
  13. 13.54³ =
  14. 14.75³ =
  15. 15.13³ =
  16. 16.81³ =
  17. 17.21³ =
  18. 18.31³ =
  19. 19.76³ =
  20. 20.72³ =
  21. 21.71³ =
  22. 22.96³ =
  23. 23.27³ =
  24. 24.15³ =
  25. 25.99³ =
  26. 26.36³ =
  27. 27.24³ =
  28. 28.69³ =
  29. 29.75³ =
  30. 30.34³ =
  31. 31.29³ =
  32. 32.84³ =
  33. 33.42³ =
  34. 34.61³ =
  35. 35.21³ =
  36. 36.76³ =
  37. 37.88³ =
  38. 38.33³ =
  39. 39.35³ =
  40. 40.54³ =

Answer key

  1. 21952
  2. 19683
  3. 17576
  4. 185193
  5. 132651
  6. 389017
  7. 195112
  8. 24389
  9. 205379
  10. 97336
  11. 421875
  12. 166375
  13. 157464
  14. 421875
  15. 2197
  16. 531441
  17. 9261
  18. 29791
  19. 438976
  20. 373248
  21. 357911
  22. 884736
  23. 19683
  24. 3375
  25. 970299
  26. 46656
  27. 13824
  28. 328509
  29. 421875
  30. 39304
  31. 24389
  32. 592704
  33. 74088
  34. 226981
  35. 9261
  36. 438976
  37. 681472
  38. 35937
  39. 42875
  40. 157464

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