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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 6 · 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. 1.75³ =
  2. 2.62³ =
  3. 3.57³ =
  4. 4.58³ =
  5. 5.67³ =
  6. 6.82³ =
  7. 7.84³ =
  8. 8.23³ =
  9. 9.18³ =
  10. 10.98³ =
  11. 11.81³ =
  12. 12.23³ =
  13. 13.89³ =
  14. 14.28³ =
  15. 15.86³ =
  16. 16.41³ =
  17. 17.41³ =
  18. 18.96³ =
  19. 19.71³ =
  20. 20.59³ =
  21. 21.96³ =
  22. 22.61³ =
  23. 23.74³ =
  24. 24.82³ =
  25. 25.63³ =
  26. 26.96³ =
  27. 27.44³ =
  28. 28.28³ =
  29. 29.97³ =
  30. 30.21³ =
  31. 31.45³ =
  32. 32.76³ =
  33. 33.64³ =
  34. 34.96³ =
  35. 35.21³ =
  36. 36.54³ =
  37. 37.32³ =
  38. 38.18³ =
  39. 39.31³ =
  40. 40.31³ =

Answer key

  1. 421875
  2. 238328
  3. 185193
  4. 195112
  5. 300763
  6. 551368
  7. 592704
  8. 12167
  9. 5832
  10. 941192
  11. 531441
  12. 12167
  13. 704969
  14. 21952
  15. 636056
  16. 68921
  17. 68921
  18. 884736
  19. 357911
  20. 205379
  21. 884736
  22. 226981
  23. 405224
  24. 551368
  25. 250047
  26. 884736
  27. 85184
  28. 21952
  29. 912673
  30. 9261
  31. 91125
  32. 438976
  33. 262144
  34. 884736
  35. 9261
  36. 157464
  37. 32768
  38. 5832
  39. 29791
  40. 29791

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