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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 762 · 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. 1.25³ =
  2. 2.96³ =
  3. 3.82³ =
  4. 4.33³ =
  5. 5.57³ =
  6. 6.96³ =
  7. 7.24³ =
  8. 8.75³ =
  9. 9.11³ =
  10. 10.91³ =
  11. 11.54³ =
  12. 12.92³ =
  13. 13.96³ =
  14. 14.69³ =
  15. 15.14³ =
  16. 16.59³ =
  17. 17.59³ =
  18. 18.31³ =
  19. 19.31³ =
  20. 20.67³ =
  21. 21.61³ =
  22. 22.13³ =
  23. 23.61³ =
  24. 24.32³ =
  25. 25.55³ =
  26. 26.11³ =
  27. 27.63³ =
  28. 28.75³ =
  29. 29.35³ =
  30. 30.94³ =
  31. 31.51³ =
  32. 32.39³ =
  33. 33.66³ =
  34. 34.54³ =
  35. 35.44³ =
  36. 36.74³ =
  37. 37.45³ =
  38. 38.41³ =
  39. 39.37³ =
  40. 40.75³ =

Answer key

  1. 15625
  2. 884736
  3. 551368
  4. 35937
  5. 185193
  6. 884736
  7. 13824
  8. 421875
  9. 1331
  10. 753571
  11. 157464
  12. 778688
  13. 884736
  14. 328509
  15. 2744
  16. 205379
  17. 205379
  18. 29791
  19. 29791
  20. 300763
  21. 226981
  22. 2197
  23. 226981
  24. 32768
  25. 166375
  26. 1331
  27. 250047
  28. 421875
  29. 42875
  30. 830584
  31. 132651
  32. 59319
  33. 287496
  34. 157464
  35. 85184
  36. 405224
  37. 91125
  38. 68921
  39. 50653
  40. 421875

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