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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 125 · 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. 1.42³ =
  2. 2.35³ =
  3. 3.28³ =
  4. 4.63³ =
  5. 5.91³ =
  6. 6.57³ =
  7. 7.17³ =
  8. 8.71³ =
  9. 9.32³ =
  10. 10.92³ =
  11. 11.61³ =
  12. 12.29³ =
  13. 13.74³ =
  14. 14.86³ =
  15. 15.15³ =
  16. 16.87³ =
  17. 17.35³ =
  18. 18.95³ =
  19. 19.93³ =
  20. 20.97³ =
  21. 21.73³ =
  22. 22.36³ =
  23. 23.87³ =
  24. 24.71³ =
  25. 25.22³ =
  26. 26.91³ =
  27. 27.61³ =
  28. 28.38³ =
  29. 29.51³ =
  30. 30.38³ =
  31. 31.61³ =
  32. 32.66³ =
  33. 33.95³ =
  34. 34.57³ =
  35. 35.33³ =
  36. 36.48³ =
  37. 37.11³ =
  38. 38.76³ =
  39. 39.91³ =
  40. 40.24³ =

Answer key

  1. 74088
  2. 42875
  3. 21952
  4. 250047
  5. 753571
  6. 185193
  7. 4913
  8. 357911
  9. 32768
  10. 778688
  11. 226981
  12. 24389
  13. 405224
  14. 636056
  15. 3375
  16. 658503
  17. 42875
  18. 857375
  19. 804357
  20. 912673
  21. 389017
  22. 46656
  23. 658503
  24. 357911
  25. 10648
  26. 753571
  27. 226981
  28. 54872
  29. 132651
  30. 54872
  31. 226981
  32. 287496
  33. 857375
  34. 185193
  35. 35937
  36. 110592
  37. 1331
  38. 438976
  39. 753571
  40. 13824

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