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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 916 · 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. 1.64³ =
  2. 2.41³ =
  3. 3.66³ =
  4. 4.15³ =
  5. 5.46³ =
  6. 6.11³ =
  7. 7.21³ =
  8. 8.54³ =
  9. 9.44³ =
  10. 10.54³ =
  11. 11.24³ =
  12. 12.41³ =
  13. 13.33³ =
  14. 14.58³ =
  15. 15.61³ =
  16. 16.69³ =
  17. 17.88³ =
  18. 18.73³ =
  19. 19.82³ =
  20. 20.14³ =
  21. 21.97³ =
  22. 22.72³ =
  23. 23.36³ =
  24. 24.86³ =
  25. 25.31³ =
  26. 26.31³ =
  27. 27.19³ =
  28. 28.71³ =
  29. 29.16³ =
  30. 30.92³ =
  31. 31.57³ =
  32. 32.39³ =
  33. 33.88³ =
  34. 34.57³ =
  35. 35.98³ =
  36. 36.48³ =
  37. 37.53³ =
  38. 38.75³ =
  39. 39.25³ =
  40. 40.82³ =

Answer key

  1. 262144
  2. 68921
  3. 287496
  4. 3375
  5. 97336
  6. 1331
  7. 9261
  8. 157464
  9. 85184
  10. 157464
  11. 13824
  12. 68921
  13. 35937
  14. 195112
  15. 226981
  16. 328509
  17. 681472
  18. 389017
  19. 551368
  20. 2744
  21. 912673
  22. 373248
  23. 46656
  24. 636056
  25. 29791
  26. 29791
  27. 6859
  28. 357911
  29. 4096
  30. 778688
  31. 185193
  32. 59319
  33. 681472
  34. 185193
  35. 941192
  36. 110592
  37. 148877
  38. 421875
  39. 15625
  40. 551368

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