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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 716 · 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. 1.52³ =
  2. 2.53³ =
  3. 3.97³ =
  4. 4.91³ =
  5. 5.97³ =
  6. 6.72³ =
  7. 7.92³ =
  8. 8.99³ =
  9. 9.77³ =
  10. 10.48³ =
  11. 11.33³ =
  12. 12.63³ =
  13. 13.49³ =
  14. 14.44³ =
  15. 15.59³ =
  16. 16.95³ =
  17. 17.23³ =
  18. 18.41³ =
  19. 19.15³ =
  20. 20.87³ =
  21. 21.85³ =
  22. 22.67³ =
  23. 23.28³ =
  24. 24.85³ =
  25. 25.77³ =
  26. 26.67³ =
  27. 27.94³ =
  28. 28.38³ =
  29. 29.73³ =
  30. 30.61³ =
  31. 31.58³ =
  32. 32.53³ =
  33. 33.34³ =
  34. 34.97³ =
  35. 35.15³ =
  36. 36.16³ =
  37. 37.93³ =
  38. 38.21³ =
  39. 39.28³ =
  40. 40.27³ =

Answer key

  1. 140608
  2. 148877
  3. 912673
  4. 753571
  5. 912673
  6. 373248
  7. 778688
  8. 970299
  9. 456533
  10. 110592
  11. 35937
  12. 250047
  13. 117649
  14. 85184
  15. 205379
  16. 857375
  17. 12167
  18. 68921
  19. 3375
  20. 658503
  21. 614125
  22. 300763
  23. 21952
  24. 614125
  25. 456533
  26. 300763
  27. 830584
  28. 54872
  29. 389017
  30. 226981
  31. 195112
  32. 148877
  33. 39304
  34. 912673
  35. 3375
  36. 4096
  37. 804357
  38. 9261
  39. 21952
  40. 19683

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