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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 944 · 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. 1.17³ =
  2. 2.81³ =
  3. 3.99³ =
  4. 4.31³ =
  5. 5.45³ =
  6. 6.74³ =
  7. 7.16³ =
  8. 8.61³ =
  9. 9.26³ =
  10. 10.18³ =
  11. 11.34³ =
  12. 12.85³ =
  13. 13.58³ =
  14. 14.22³ =
  15. 15.47³ =
  16. 16.21³ =
  17. 17.42³ =
  18. 18.48³ =
  19. 19.99³ =
  20. 20.52³ =
  21. 21.61³ =
  22. 22.68³ =
  23. 23.82³ =
  24. 24.59³ =
  25. 25.95³ =
  26. 26.35³ =
  27. 27.31³ =
  28. 28.92³ =
  29. 29.89³ =
  30. 30.19³ =
  31. 31.21³ =
  32. 32.35³ =
  33. 33.61³ =
  34. 34.51³ =
  35. 35.44³ =
  36. 36.91³ =
  37. 37.36³ =
  38. 38.51³ =
  39. 39.19³ =
  40. 40.54³ =

Answer key

  1. 4913
  2. 531441
  3. 970299
  4. 29791
  5. 91125
  6. 405224
  7. 4096
  8. 226981
  9. 17576
  10. 5832
  11. 39304
  12. 614125
  13. 195112
  14. 10648
  15. 103823
  16. 9261
  17. 74088
  18. 110592
  19. 970299
  20. 140608
  21. 226981
  22. 314432
  23. 551368
  24. 205379
  25. 857375
  26. 42875
  27. 29791
  28. 778688
  29. 704969
  30. 6859
  31. 9261
  32. 42875
  33. 226981
  34. 132651
  35. 85184
  36. 753571
  37. 46656
  38. 132651
  39. 6859
  40. 157464

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