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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 555 · 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. 1.72³ =
  2. 2.81³ =
  3. 3.56³ =
  4. 4.69³ =
  5. 5.39³ =
  6. 6.55³ =
  7. 7.12³ =
  8. 8.84³ =
  9. 9.96³ =
  10. 10.25³ =
  11. 11.45³ =
  12. 12.99³ =
  13. 13.86³ =
  14. 14.93³ =
  15. 15.97³ =
  16. 16.76³ =
  17. 17.19³ =
  18. 18.84³ =
  19. 19.33³ =
  20. 20.36³ =
  21. 21.63³ =
  22. 22.84³ =
  23. 23.37³ =
  24. 24.61³ =
  25. 25.32³ =
  26. 26.36³ =
  27. 27.52³ =
  28. 28.88³ =
  29. 29.14³ =
  30. 30.54³ =
  31. 31.94³ =
  32. 32.44³ =
  33. 33.56³ =
  34. 34.23³ =
  35. 35.66³ =
  36. 36.81³ =
  37. 37.63³ =
  38. 38.98³ =
  39. 39.41³ =
  40. 40.41³ =

Answer key

  1. 373248
  2. 531441
  3. 175616
  4. 328509
  5. 59319
  6. 166375
  7. 1728
  8. 592704
  9. 884736
  10. 15625
  11. 91125
  12. 970299
  13. 636056
  14. 804357
  15. 912673
  16. 438976
  17. 6859
  18. 592704
  19. 35937
  20. 46656
  21. 250047
  22. 592704
  23. 50653
  24. 226981
  25. 32768
  26. 46656
  27. 140608
  28. 681472
  29. 2744
  30. 157464
  31. 830584
  32. 85184
  33. 175616
  34. 12167
  35. 287496
  36. 531441
  37. 250047
  38. 941192
  39. 68921
  40. 68921

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