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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 392 · 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. 1.93³ =
  2. 2.42³ =
  3. 3.52³ =
  4. 4.36³ =
  5. 5.17³ =
  6. 6.37³ =
  7. 7.57³ =
  8. 8.29³ =
  9. 9.66³ =
  10. 10.42³ =
  11. 11.67³ =
  12. 12.41³ =
  13. 13.75³ =
  14. 14.33³ =
  15. 15.19³ =
  16. 16.72³ =
  17. 17.91³ =
  18. 18.99³ =
  19. 19.72³ =
  20. 20.44³ =
  21. 21.36³ =
  22. 22.62³ =
  23. 23.71³ =
  24. 24.28³ =
  25. 25.21³ =
  26. 26.69³ =
  27. 27.22³ =
  28. 28.21³ =
  29. 29.68³ =
  30. 30.44³ =
  31. 31.42³ =
  32. 32.35³ =
  33. 33.35³ =
  34. 34.18³ =
  35. 35.11³ =
  36. 36.94³ =
  37. 37.76³ =
  38. 38.71³ =
  39. 39.61³ =
  40. 40.74³ =

Answer key

  1. 804357
  2. 74088
  3. 140608
  4. 46656
  5. 4913
  6. 50653
  7. 185193
  8. 24389
  9. 287496
  10. 74088
  11. 300763
  12. 68921
  13. 421875
  14. 35937
  15. 6859
  16. 373248
  17. 753571
  18. 970299
  19. 373248
  20. 85184
  21. 46656
  22. 238328
  23. 357911
  24. 21952
  25. 9261
  26. 328509
  27. 10648
  28. 9261
  29. 314432
  30. 85184
  31. 74088
  32. 42875
  33. 42875
  34. 5832
  35. 1331
  36. 830584
  37. 438976
  38. 357911
  39. 226981
  40. 405224

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