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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 905 · 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. 1.44³ =
  2. 2.35³ =
  3. 3.88³ =
  4. 4.77³ =
  5. 5.37³ =
  6. 6.72³ =
  7. 7.65³ =
  8. 8.89³ =
  9. 9.83³ =
  10. 10.79³ =
  11. 11.34³ =
  12. 12.52³ =
  13. 13.26³ =
  14. 14.28³ =
  15. 15.19³ =
  16. 16.11³ =
  17. 17.62³ =
  18. 18.19³ =
  19. 19.48³ =
  20. 20.91³ =
  21. 21.92³ =
  22. 22.33³ =
  23. 23.17³ =
  24. 24.25³ =
  25. 25.38³ =
  26. 26.54³ =
  27. 27.36³ =
  28. 28.75³ =
  29. 29.36³ =
  30. 30.58³ =
  31. 31.44³ =
  32. 32.95³ =
  33. 33.21³ =
  34. 34.41³ =
  35. 35.38³ =
  36. 36.21³ =
  37. 37.81³ =
  38. 38.75³ =
  39. 39.66³ =
  40. 40.45³ =

Answer key

  1. 85184
  2. 42875
  3. 681472
  4. 456533
  5. 50653
  6. 373248
  7. 274625
  8. 704969
  9. 571787
  10. 493039
  11. 39304
  12. 140608
  13. 17576
  14. 21952
  15. 6859
  16. 1331
  17. 238328
  18. 6859
  19. 110592
  20. 753571
  21. 778688
  22. 35937
  23. 4913
  24. 15625
  25. 54872
  26. 157464
  27. 46656
  28. 421875
  29. 46656
  30. 195112
  31. 85184
  32. 857375
  33. 9261
  34. 68921
  35. 54872
  36. 9261
  37. 531441
  38. 421875
  39. 287496
  40. 91125

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