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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 686 · 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. 1.33³ =
  2. 2.54³ =
  3. 3.52³ =
  4. 4.14³ =
  5. 5.85³ =
  6. 6.19³ =
  7. 7.15³ =
  8. 8.21³ =
  9. 9.34³ =
  10. 10.96³ =
  11. 11.31³ =
  12. 12.52³ =
  13. 13.61³ =
  14. 14.34³ =
  15. 15.53³ =
  16. 16.61³ =
  17. 17.23³ =
  18. 18.19³ =
  19. 19.94³ =
  20. 20.16³ =
  21. 21.12³ =
  22. 22.87³ =
  23. 23.25³ =
  24. 24.16³ =
  25. 25.85³ =
  26. 26.19³ =
  27. 27.28³ =
  28. 28.12³ =
  29. 29.97³ =
  30. 30.51³ =
  31. 31.64³ =
  32. 32.45³ =
  33. 33.72³ =
  34. 34.88³ =
  35. 35.48³ =
  36. 36.75³ =
  37. 37.92³ =
  38. 38.56³ =
  39. 39.91³ =
  40. 40.21³ =

Answer key

  1. 35937
  2. 157464
  3. 140608
  4. 2744
  5. 614125
  6. 6859
  7. 3375
  8. 9261
  9. 39304
  10. 884736
  11. 29791
  12. 140608
  13. 226981
  14. 39304
  15. 148877
  16. 226981
  17. 12167
  18. 6859
  19. 830584
  20. 4096
  21. 1728
  22. 658503
  23. 15625
  24. 4096
  25. 614125
  26. 6859
  27. 21952
  28. 1728
  29. 912673
  30. 132651
  31. 262144
  32. 91125
  33. 373248
  34. 681472
  35. 110592
  36. 421875
  37. 778688
  38. 175616
  39. 753571
  40. 9261

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