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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 866 · 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. 2.52³ =
  3. 3.75³ =
  4. 4.11³ =
  5. 5.37³ =
  6. 6.41³ =
  7. 7.58³ =
  8. 8.81³ =
  9. 9.47³ =
  10. 10.78³ =
  11. 11.26³ =
  12. 12.47³ =
  13. 13.35³ =
  14. 14.14³ =
  15. 15.26³ =
  16. 16.49³ =
  17. 17.99³ =
  18. 18.63³ =
  19. 19.51³ =
  20. 20.22³ =
  21. 21.56³ =
  22. 22.62³ =
  23. 23.32³ =
  24. 24.62³ =
  25. 25.68³ =
  26. 26.98³ =
  27. 27.19³ =
  28. 28.55³ =
  29. 29.91³ =
  30. 30.48³ =
  31. 31.18³ =
  32. 32.84³ =
  33. 33.88³ =
  34. 34.97³ =
  35. 35.85³ =
  36. 36.26³ =
  37. 37.87³ =
  38. 38.83³ =
  39. 39.21³ =
  40. 40.91³ =

Answer key

  1. 85184
  2. 140608
  3. 421875
  4. 1331
  5. 50653
  6. 68921
  7. 195112
  8. 531441
  9. 103823
  10. 474552
  11. 17576
  12. 103823
  13. 42875
  14. 2744
  15. 17576
  16. 117649
  17. 970299
  18. 250047
  19. 132651
  20. 10648
  21. 175616
  22. 238328
  23. 32768
  24. 238328
  25. 314432
  26. 941192
  27. 6859
  28. 166375
  29. 753571
  30. 110592
  31. 5832
  32. 592704
  33. 681472
  34. 912673
  35. 614125
  36. 17576
  37. 658503
  38. 571787
  39. 9261
  40. 753571

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