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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 898 · 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. 1.98³ =
  2. 2.66³ =
  3. 3.45³ =
  4. 4.17³ =
  5. 5.61³ =
  6. 6.49³ =
  7. 7.21³ =
  8. 8.49³ =
  9. 9.41³ =
  10. 10.54³ =
  11. 11.32³ =
  12. 12.97³ =
  13. 13.91³ =
  14. 14.56³ =
  15. 15.67³ =
  16. 16.91³ =
  17. 17.92³ =
  18. 18.89³ =
  19. 19.16³ =
  20. 20.89³ =
  21. 21.58³ =
  22. 22.11³ =
  23. 23.79³ =
  24. 24.24³ =
  25. 25.26³ =
  26. 26.15³ =
  27. 27.56³ =
  28. 28.48³ =
  29. 29.62³ =
  30. 30.75³ =
  31. 31.24³ =
  32. 32.16³ =
  33. 33.64³ =
  34. 34.75³ =
  35. 35.63³ =
  36. 36.19³ =
  37. 37.95³ =
  38. 38.56³ =
  39. 39.15³ =
  40. 40.95³ =

Answer key

  1. 941192
  2. 287496
  3. 91125
  4. 4913
  5. 226981
  6. 117649
  7. 9261
  8. 117649
  9. 68921
  10. 157464
  11. 32768
  12. 912673
  13. 753571
  14. 175616
  15. 300763
  16. 753571
  17. 778688
  18. 704969
  19. 4096
  20. 704969
  21. 195112
  22. 1331
  23. 493039
  24. 13824
  25. 17576
  26. 3375
  27. 175616
  28. 110592
  29. 238328
  30. 421875
  31. 13824
  32. 4096
  33. 262144
  34. 421875
  35. 250047
  36. 6859
  37. 857375
  38. 175616
  39. 3375
  40. 857375

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