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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 643 · 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. 1.39³ =
  2. 2.94³ =
  3. 3.67³ =
  4. 4.57³ =
  5. 5.98³ =
  6. 6.81³ =
  7. 7.31³ =
  8. 8.22³ =
  9. 9.74³ =
  10. 10.93³ =
  11. 11.62³ =
  12. 12.48³ =
  13. 13.47³ =
  14. 14.77³ =
  15. 15.54³ =
  16. 16.61³ =
  17. 17.12³ =
  18. 18.75³ =
  19. 19.27³ =
  20. 20.84³ =
  21. 21.28³ =
  22. 22.38³ =
  23. 23.98³ =
  24. 24.24³ =
  25. 25.51³ =
  26. 26.11³ =
  27. 27.91³ =
  28. 28.49³ =
  29. 29.88³ =
  30. 30.18³ =
  31. 31.51³ =
  32. 32.65³ =
  33. 33.41³ =
  34. 34.56³ =
  35. 35.91³ =
  36. 36.73³ =
  37. 37.22³ =
  38. 38.29³ =
  39. 39.92³ =
  40. 40.68³ =

Answer key

  1. 59319
  2. 830584
  3. 300763
  4. 185193
  5. 941192
  6. 531441
  7. 29791
  8. 10648
  9. 405224
  10. 804357
  11. 238328
  12. 110592
  13. 103823
  14. 456533
  15. 157464
  16. 226981
  17. 1728
  18. 421875
  19. 19683
  20. 592704
  21. 21952
  22. 54872
  23. 941192
  24. 13824
  25. 132651
  26. 1331
  27. 753571
  28. 117649
  29. 681472
  30. 5832
  31. 132651
  32. 274625
  33. 68921
  34. 175616
  35. 753571
  36. 389017
  37. 10648
  38. 24389
  39. 778688
  40. 314432

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