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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 919 · 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. 1.25³ =
  2. 2.25³ =
  3. 3.56³ =
  4. 4.87³ =
  5. 5.59³ =
  6. 6.79³ =
  7. 7.35³ =
  8. 8.77³ =
  9. 9.51³ =
  10. 10.91³ =
  11. 11.72³ =
  12. 12.22³ =
  13. 13.53³ =
  14. 14.13³ =
  15. 15.63³ =
  16. 16.73³ =
  17. 17.35³ =
  18. 18.83³ =
  19. 19.64³ =
  20. 20.97³ =
  21. 21.57³ =
  22. 22.34³ =
  23. 23.94³ =
  24. 24.41³ =
  25. 25.43³ =
  26. 26.65³ =
  27. 27.61³ =
  28. 28.61³ =
  29. 29.11³ =
  30. 30.15³ =
  31. 31.16³ =
  32. 32.77³ =
  33. 33.75³ =
  34. 34.57³ =
  35. 35.15³ =
  36. 36.33³ =
  37. 37.57³ =
  38. 38.91³ =
  39. 39.89³ =
  40. 40.83³ =

Answer key

  1. 15625
  2. 15625
  3. 175616
  4. 658503
  5. 205379
  6. 493039
  7. 42875
  8. 456533
  9. 132651
  10. 753571
  11. 373248
  12. 10648
  13. 148877
  14. 2197
  15. 250047
  16. 389017
  17. 42875
  18. 571787
  19. 262144
  20. 912673
  21. 185193
  22. 39304
  23. 830584
  24. 68921
  25. 79507
  26. 274625
  27. 226981
  28. 226981
  29. 1331
  30. 3375
  31. 4096
  32. 456533
  33. 421875
  34. 185193
  35. 3375
  36. 35937
  37. 185193
  38. 753571
  39. 704969
  40. 571787

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