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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 354 · 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. 1.19³ =
  2. 2.36³ =
  3. 3.92³ =
  4. 4.29³ =
  5. 5.55³ =
  6. 6.32³ =
  7. 7.86³ =
  8. 8.21³ =
  9. 9.57³ =
  10. 10.39³ =
  11. 11.49³ =
  12. 12.69³ =
  13. 13.41³ =
  14. 14.19³ =
  15. 15.58³ =
  16. 16.33³ =
  17. 17.63³ =
  18. 18.18³ =
  19. 19.92³ =
  20. 20.62³ =
  21. 21.91³ =
  22. 22.65³ =
  23. 23.78³ =
  24. 24.61³ =
  25. 25.17³ =
  26. 26.32³ =
  27. 27.46³ =
  28. 28.48³ =
  29. 29.62³ =
  30. 30.62³ =
  31. 31.42³ =
  32. 32.11³ =
  33. 33.17³ =
  34. 34.75³ =
  35. 35.53³ =
  36. 36.63³ =
  37. 37.91³ =
  38. 38.33³ =
  39. 39.76³ =
  40. 40.41³ =

Answer key

  1. 6859
  2. 46656
  3. 778688
  4. 24389
  5. 166375
  6. 32768
  7. 636056
  8. 9261
  9. 185193
  10. 59319
  11. 117649
  12. 328509
  13. 68921
  14. 6859
  15. 195112
  16. 35937
  17. 250047
  18. 5832
  19. 778688
  20. 238328
  21. 753571
  22. 274625
  23. 474552
  24. 226981
  25. 4913
  26. 32768
  27. 97336
  28. 110592
  29. 238328
  30. 238328
  31. 74088
  32. 1331
  33. 4913
  34. 421875
  35. 148877
  36. 250047
  37. 753571
  38. 35937
  39. 438976
  40. 68921

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