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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 602 · 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. 1.74³ =
  2. 2.16³ =
  3. 3.76³ =
  4. 4.94³ =
  5. 5.41³ =
  6. 6.51³ =
  7. 7.56³ =
  8. 8.41³ =
  9. 9.48³ =
  10. 10.78³ =
  11. 11.33³ =
  12. 12.96³ =
  13. 13.81³ =
  14. 14.53³ =
  15. 15.98³ =
  16. 16.59³ =
  17. 17.34³ =
  18. 18.62³ =
  19. 19.59³ =
  20. 20.31³ =
  21. 21.85³ =
  22. 22.24³ =
  23. 23.31³ =
  24. 24.81³ =
  25. 25.82³ =
  26. 26.15³ =
  27. 27.13³ =
  28. 28.54³ =
  29. 29.65³ =
  30. 30.49³ =
  31. 31.82³ =
  32. 32.16³ =
  33. 33.87³ =
  34. 34.65³ =
  35. 35.29³ =
  36. 36.85³ =
  37. 37.93³ =
  38. 38.11³ =
  39. 39.36³ =
  40. 40.83³ =

Answer key

  1. 405224
  2. 4096
  3. 438976
  4. 830584
  5. 68921
  6. 132651
  7. 175616
  8. 68921
  9. 110592
  10. 474552
  11. 35937
  12. 884736
  13. 531441
  14. 148877
  15. 941192
  16. 205379
  17. 39304
  18. 238328
  19. 205379
  20. 29791
  21. 614125
  22. 13824
  23. 29791
  24. 531441
  25. 551368
  26. 3375
  27. 2197
  28. 157464
  29. 274625
  30. 117649
  31. 551368
  32. 4096
  33. 658503
  34. 274625
  35. 24389
  36. 614125
  37. 804357
  38. 1331
  39. 46656
  40. 571787

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