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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 448 · 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. 1.38³ =
  2. 2.76³ =
  3. 3.56³ =
  4. 4.74³ =
  5. 5.62³ =
  6. 6.61³ =
  7. 7.59³ =
  8. 8.27³ =
  9. 9.21³ =
  10. 10.72³ =
  11. 11.38³ =
  12. 12.55³ =
  13. 13.64³ =
  14. 14.75³ =
  15. 15.32³ =
  16. 16.36³ =
  17. 17.19³ =
  18. 18.16³ =
  19. 19.25³ =
  20. 20.57³ =
  21. 21.72³ =
  22. 22.79³ =
  23. 23.45³ =
  24. 24.62³ =
  25. 25.77³ =
  26. 26.46³ =
  27. 27.22³ =
  28. 28.31³ =
  29. 29.32³ =
  30. 30.78³ =
  31. 31.98³ =
  32. 32.15³ =
  33. 33.77³ =
  34. 34.99³ =
  35. 35.38³ =
  36. 36.55³ =
  37. 37.55³ =
  38. 38.64³ =
  39. 39.67³ =
  40. 40.26³ =

Answer key

  1. 54872
  2. 438976
  3. 175616
  4. 405224
  5. 238328
  6. 226981
  7. 205379
  8. 19683
  9. 9261
  10. 373248
  11. 54872
  12. 166375
  13. 262144
  14. 421875
  15. 32768
  16. 46656
  17. 6859
  18. 4096
  19. 15625
  20. 185193
  21. 373248
  22. 493039
  23. 91125
  24. 238328
  25. 456533
  26. 97336
  27. 10648
  28. 29791
  29. 32768
  30. 474552
  31. 941192
  32. 3375
  33. 456533
  34. 970299
  35. 54872
  36. 166375
  37. 166375
  38. 262144
  39. 300763
  40. 17576

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