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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 676 · 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. 1.29³ =
  2. 2.12³ =
  3. 3.36³ =
  4. 4.24³ =
  5. 5.15³ =
  6. 6.88³ =
  7. 7.56³ =
  8. 8.71³ =
  9. 9.41³ =
  10. 10.22³ =
  11. 11.56³ =
  12. 12.66³ =
  13. 13.72³ =
  14. 14.46³ =
  15. 15.27³ =
  16. 16.51³ =
  17. 17.66³ =
  18. 18.68³ =
  19. 19.96³ =
  20. 20.91³ =
  21. 21.85³ =
  22. 22.41³ =
  23. 23.28³ =
  24. 24.76³ =
  25. 25.54³ =
  26. 26.21³ =
  27. 27.82³ =
  28. 28.52³ =
  29. 29.61³ =
  30. 30.78³ =
  31. 31.79³ =
  32. 32.41³ =
  33. 33.16³ =
  34. 34.74³ =
  35. 35.74³ =
  36. 36.38³ =
  37. 37.14³ =
  38. 38.53³ =
  39. 39.91³ =
  40. 40.55³ =

Answer key

  1. 24389
  2. 1728
  3. 46656
  4. 13824
  5. 3375
  6. 681472
  7. 175616
  8. 357911
  9. 68921
  10. 10648
  11. 175616
  12. 287496
  13. 373248
  14. 97336
  15. 19683
  16. 132651
  17. 287496
  18. 314432
  19. 884736
  20. 753571
  21. 614125
  22. 68921
  23. 21952
  24. 438976
  25. 157464
  26. 9261
  27. 551368
  28. 140608
  29. 226981
  30. 474552
  31. 493039
  32. 68921
  33. 4096
  34. 405224
  35. 405224
  36. 54872
  37. 2744
  38. 148877
  39. 753571
  40. 166375

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