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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 24 · 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. 1.33³ =
  2. 2.99³ =
  3. 3.31³ =
  4. 4.96³ =
  5. 5.47³ =
  6. 6.62³ =
  7. 7.76³ =
  8. 8.59³ =
  9. 9.22³ =
  10. 10.19³ =
  11. 11.31³ =
  12. 12.55³ =
  13. 13.82³ =
  14. 14.19³ =
  15. 15.11³ =
  16. 16.36³ =
  17. 17.81³ =
  18. 18.47³ =
  19. 19.66³ =
  20. 20.37³ =
  21. 21.54³ =
  22. 22.59³ =
  23. 23.56³ =
  24. 24.52³ =
  25. 25.72³ =
  26. 26.87³ =
  27. 27.31³ =
  28. 28.91³ =
  29. 29.92³ =
  30. 30.74³ =
  31. 31.61³ =
  32. 32.94³ =
  33. 33.17³ =
  34. 34.14³ =
  35. 35.11³ =
  36. 36.47³ =
  37. 37.61³ =
  38. 38.55³ =
  39. 39.47³ =
  40. 40.12³ =

Answer key

  1. 35937
  2. 970299
  3. 29791
  4. 884736
  5. 103823
  6. 238328
  7. 438976
  8. 205379
  9. 10648
  10. 6859
  11. 29791
  12. 166375
  13. 551368
  14. 6859
  15. 1331
  16. 46656
  17. 531441
  18. 103823
  19. 287496
  20. 50653
  21. 157464
  22. 205379
  23. 175616
  24. 140608
  25. 373248
  26. 658503
  27. 29791
  28. 753571
  29. 778688
  30. 405224
  31. 226981
  32. 830584
  33. 4913
  34. 2744
  35. 1331
  36. 103823
  37. 226981
  38. 166375
  39. 103823
  40. 1728

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