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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 322 · 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. 1.61³ =
  2. 2.29³ =
  3. 3.92³ =
  4. 4.95³ =
  5. 5.22³ =
  6. 6.91³ =
  7. 7.21³ =
  8. 8.62³ =
  9. 9.68³ =
  10. 10.15³ =
  11. 11.53³ =
  12. 12.78³ =
  13. 13.51³ =
  14. 14.25³ =
  15. 15.81³ =
  16. 16.18³ =
  17. 17.58³ =
  18. 18.65³ =
  19. 19.86³ =
  20. 20.75³ =
  21. 21.61³ =
  22. 22.62³ =
  23. 23.12³ =
  24. 24.53³ =
  25. 25.71³ =
  26. 26.18³ =
  27. 27.17³ =
  28. 28.55³ =
  29. 29.44³ =
  30. 30.64³ =
  31. 31.29³ =
  32. 32.15³ =
  33. 33.72³ =
  34. 34.84³ =
  35. 35.96³ =
  36. 36.76³ =
  37. 37.18³ =
  38. 38.55³ =
  39. 39.21³ =
  40. 40.36³ =

Answer key

  1. 226981
  2. 24389
  3. 778688
  4. 857375
  5. 10648
  6. 753571
  7. 9261
  8. 238328
  9. 314432
  10. 3375
  11. 148877
  12. 474552
  13. 132651
  14. 15625
  15. 531441
  16. 5832
  17. 195112
  18. 274625
  19. 636056
  20. 421875
  21. 226981
  22. 238328
  23. 1728
  24. 148877
  25. 357911
  26. 5832
  27. 4913
  28. 166375
  29. 85184
  30. 262144
  31. 24389
  32. 3375
  33. 373248
  34. 592704
  35. 884736
  36. 438976
  37. 5832
  38. 166375
  39. 9261
  40. 46656

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