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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 768 · 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. 1.88³ =
  2. 2.82³ =
  3. 3.48³ =
  4. 4.73³ =
  5. 5.51³ =
  6. 6.16³ =
  7. 7.69³ =
  8. 8.21³ =
  9. 9.24³ =
  10. 10.54³ =
  11. 11.38³ =
  12. 12.22³ =
  13. 13.58³ =
  14. 14.23³ =
  15. 15.74³ =
  16. 16.24³ =
  17. 17.33³ =
  18. 18.94³ =
  19. 19.85³ =
  20. 20.19³ =
  21. 21.51³ =
  22. 22.35³ =
  23. 23.36³ =
  24. 24.41³ =
  25. 25.37³ =
  26. 26.11³ =
  27. 27.86³ =
  28. 28.66³ =
  29. 29.54³ =
  30. 30.98³ =
  31. 31.65³ =
  32. 32.71³ =
  33. 33.87³ =
  34. 34.48³ =
  35. 35.18³ =
  36. 36.87³ =
  37. 37.13³ =
  38. 38.54³ =
  39. 39.56³ =
  40. 40.13³ =

Answer key

  1. 681472
  2. 551368
  3. 110592
  4. 389017
  5. 132651
  6. 4096
  7. 328509
  8. 9261
  9. 13824
  10. 157464
  11. 54872
  12. 10648
  13. 195112
  14. 12167
  15. 405224
  16. 13824
  17. 35937
  18. 830584
  19. 614125
  20. 6859
  21. 132651
  22. 42875
  23. 46656
  24. 68921
  25. 50653
  26. 1331
  27. 636056
  28. 287496
  29. 157464
  30. 941192
  31. 274625
  32. 357911
  33. 658503
  34. 110592
  35. 5832
  36. 658503
  37. 2197
  38. 157464
  39. 175616
  40. 2197

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