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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 929 · 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. 1.33³ =
  2. 2.51³ =
  3. 3.83³ =
  4. 4.91³ =
  5. 5.78³ =
  6. 6.59³ =
  7. 7.61³ =
  8. 8.86³ =
  9. 9.53³ =
  10. 10.32³ =
  11. 11.24³ =
  12. 12.32³ =
  13. 13.37³ =
  14. 14.76³ =
  15. 15.25³ =
  16. 16.94³ =
  17. 17.65³ =
  18. 18.57³ =
  19. 19.48³ =
  20. 20.31³ =
  21. 21.45³ =
  22. 22.66³ =
  23. 23.92³ =
  24. 24.85³ =
  25. 25.95³ =
  26. 26.69³ =
  27. 27.91³ =
  28. 28.16³ =
  29. 29.32³ =
  30. 30.18³ =
  31. 31.83³ =
  32. 32.96³ =
  33. 33.29³ =
  34. 34.16³ =
  35. 35.19³ =
  36. 36.69³ =
  37. 37.98³ =
  38. 38.42³ =
  39. 39.35³ =
  40. 40.53³ =

Answer key

  1. 35937
  2. 132651
  3. 571787
  4. 753571
  5. 474552
  6. 205379
  7. 226981
  8. 636056
  9. 148877
  10. 32768
  11. 13824
  12. 32768
  13. 50653
  14. 438976
  15. 15625
  16. 830584
  17. 274625
  18. 185193
  19. 110592
  20. 29791
  21. 91125
  22. 287496
  23. 778688
  24. 614125
  25. 857375
  26. 328509
  27. 753571
  28. 4096
  29. 32768
  30. 5832
  31. 571787
  32. 884736
  33. 24389
  34. 4096
  35. 6859
  36. 328509
  37. 941192
  38. 74088
  39. 42875
  40. 148877

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