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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 584 · 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. 1.99³ =
  2. 2.51³ =
  3. 3.66³ =
  4. 4.62³ =
  5. 5.59³ =
  6. 6.28³ =
  7. 7.49³ =
  8. 8.75³ =
  9. 9.41³ =
  10. 10.92³ =
  11. 11.28³ =
  12. 12.91³ =
  13. 13.21³ =
  14. 14.34³ =
  15. 15.91³ =
  16. 16.19³ =
  17. 17.78³ =
  18. 18.54³ =
  19. 19.94³ =
  20. 20.17³ =
  21. 21.77³ =
  22. 22.66³ =
  23. 23.78³ =
  24. 24.67³ =
  25. 25.79³ =
  26. 26.33³ =
  27. 27.48³ =
  28. 28.67³ =
  29. 29.28³ =
  30. 30.13³ =
  31. 31.55³ =
  32. 32.72³ =
  33. 33.62³ =
  34. 34.56³ =
  35. 35.99³ =
  36. 36.59³ =
  37. 37.52³ =
  38. 38.17³ =
  39. 39.38³ =
  40. 40.89³ =

Answer key

  1. 970299
  2. 132651
  3. 287496
  4. 238328
  5. 205379
  6. 21952
  7. 117649
  8. 421875
  9. 68921
  10. 778688
  11. 21952
  12. 753571
  13. 9261
  14. 39304
  15. 753571
  16. 6859
  17. 474552
  18. 157464
  19. 830584
  20. 4913
  21. 456533
  22. 287496
  23. 474552
  24. 300763
  25. 493039
  26. 35937
  27. 110592
  28. 300763
  29. 21952
  30. 2197
  31. 166375
  32. 373248
  33. 238328
  34. 175616
  35. 970299
  36. 205379
  37. 140608
  38. 4913
  39. 54872
  40. 704969

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