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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 654 · 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. 1.62³ =
  2. 2.13³ =
  3. 3.16³ =
  4. 4.58³ =
  5. 5.19³ =
  6. 6.95³ =
  7. 7.31³ =
  8. 8.61³ =
  9. 9.25³ =
  10. 10.98³ =
  11. 11.17³ =
  12. 12.82³ =
  13. 13.18³ =
  14. 14.66³ =
  15. 15.43³ =
  16. 16.67³ =
  17. 17.73³ =
  18. 18.75³ =
  19. 19.44³ =
  20. 20.78³ =
  21. 21.59³ =
  22. 22.25³ =
  23. 23.16³ =
  24. 24.54³ =
  25. 25.46³ =
  26. 26.61³ =
  27. 27.85³ =
  28. 28.23³ =
  29. 29.28³ =
  30. 30.17³ =
  31. 31.47³ =
  32. 32.66³ =
  33. 33.32³ =
  34. 34.79³ =
  35. 35.87³ =
  36. 36.46³ =
  37. 37.18³ =
  38. 38.97³ =
  39. 39.82³ =
  40. 40.64³ =

Answer key

  1. 238328
  2. 2197
  3. 4096
  4. 195112
  5. 6859
  6. 857375
  7. 29791
  8. 226981
  9. 15625
  10. 941192
  11. 4913
  12. 551368
  13. 5832
  14. 287496
  15. 79507
  16. 300763
  17. 389017
  18. 421875
  19. 85184
  20. 474552
  21. 205379
  22. 15625
  23. 4096
  24. 157464
  25. 97336
  26. 226981
  27. 614125
  28. 12167
  29. 21952
  30. 4913
  31. 103823
  32. 287496
  33. 32768
  34. 493039
  35. 658503
  36. 97336
  37. 5832
  38. 912673
  39. 551368
  40. 262144

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