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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 460 · 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. 1.85³ =
  2. 2.77³ =
  3. 3.78³ =
  4. 4.95³ =
  5. 5.11³ =
  6. 6.32³ =
  7. 7.21³ =
  8. 8.91³ =
  9. 9.95³ =
  10. 10.97³ =
  11. 11.73³ =
  12. 12.14³ =
  13. 13.16³ =
  14. 14.57³ =
  15. 15.69³ =
  16. 16.92³ =
  17. 17.77³ =
  18. 18.61³ =
  19. 19.87³ =
  20. 20.57³ =
  21. 21.48³ =
  22. 22.75³ =
  23. 23.57³ =
  24. 24.81³ =
  25. 25.71³ =
  26. 26.66³ =
  27. 27.94³ =
  28. 28.23³ =
  29. 29.25³ =
  30. 30.81³ =
  31. 31.44³ =
  32. 32.35³ =
  33. 33.96³ =
  34. 34.15³ =
  35. 35.94³ =
  36. 36.32³ =
  37. 37.84³ =
  38. 38.31³ =
  39. 39.45³ =
  40. 40.88³ =

Answer key

  1. 614125
  2. 456533
  3. 474552
  4. 857375
  5. 1331
  6. 32768
  7. 9261
  8. 753571
  9. 857375
  10. 912673
  11. 389017
  12. 2744
  13. 4096
  14. 185193
  15. 328509
  16. 778688
  17. 456533
  18. 226981
  19. 658503
  20. 185193
  21. 110592
  22. 421875
  23. 185193
  24. 531441
  25. 357911
  26. 287496
  27. 830584
  28. 12167
  29. 15625
  30. 531441
  31. 85184
  32. 42875
  33. 884736
  34. 3375
  35. 830584
  36. 32768
  37. 592704
  38. 29791
  39. 91125
  40. 681472

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