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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 717 · 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. 1.41³ =
  2. 2.47³ =
  3. 3.81³ =
  4. 4.28³ =
  5. 5.24³ =
  6. 6.84³ =
  7. 7.78³ =
  8. 8.97³ =
  9. 9.45³ =
  10. 10.72³ =
  11. 11.55³ =
  12. 12.42³ =
  13. 13.68³ =
  14. 14.11³ =
  15. 15.86³ =
  16. 16.38³ =
  17. 17.12³ =
  18. 18.73³ =
  19. 19.87³ =
  20. 20.96³ =
  21. 21.41³ =
  22. 22.38³ =
  23. 23.86³ =
  24. 24.74³ =
  25. 25.77³ =
  26. 26.47³ =
  27. 27.87³ =
  28. 28.61³ =
  29. 29.51³ =
  30. 30.78³ =
  31. 31.93³ =
  32. 32.51³ =
  33. 33.84³ =
  34. 34.61³ =
  35. 35.61³ =
  36. 36.21³ =
  37. 37.67³ =
  38. 38.15³ =
  39. 39.19³ =
  40. 40.69³ =

Answer key

  1. 68921
  2. 103823
  3. 531441
  4. 21952
  5. 13824
  6. 592704
  7. 474552
  8. 912673
  9. 91125
  10. 373248
  11. 166375
  12. 74088
  13. 314432
  14. 1331
  15. 636056
  16. 54872
  17. 1728
  18. 389017
  19. 658503
  20. 884736
  21. 68921
  22. 54872
  23. 636056
  24. 405224
  25. 456533
  26. 103823
  27. 658503
  28. 226981
  29. 132651
  30. 474552
  31. 804357
  32. 132651
  33. 592704
  34. 226981
  35. 226981
  36. 9261
  37. 300763
  38. 3375
  39. 6859
  40. 328509

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