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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 606 · 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. 2.41³ =
  3. 3.95³ =
  4. 4.61³ =
  5. 5.57³ =
  6. 6.36³ =
  7. 7.45³ =
  8. 8.82³ =
  9. 9.91³ =
  10. 10.71³ =
  11. 11.91³ =
  12. 12.75³ =
  13. 13.53³ =
  14. 14.45³ =
  15. 15.92³ =
  16. 16.28³ =
  17. 17.48³ =
  18. 18.28³ =
  19. 19.67³ =
  20. 20.12³ =
  21. 21.93³ =
  22. 22.33³ =
  23. 23.98³ =
  24. 24.78³ =
  25. 25.55³ =
  26. 26.82³ =
  27. 27.87³ =
  28. 28.21³ =
  29. 29.72³ =
  30. 30.35³ =
  31. 31.69³ =
  32. 32.68³ =
  33. 33.37³ =
  34. 34.88³ =
  35. 35.97³ =
  36. 36.73³ =
  37. 37.11³ =
  38. 38.95³ =
  39. 39.69³ =
  40. 40.97³ =

Answer key

  1. 54872
  2. 68921
  3. 857375
  4. 226981
  5. 185193
  6. 46656
  7. 91125
  8. 551368
  9. 753571
  10. 357911
  11. 753571
  12. 421875
  13. 148877
  14. 91125
  15. 778688
  16. 21952
  17. 110592
  18. 21952
  19. 300763
  20. 1728
  21. 804357
  22. 35937
  23. 941192
  24. 474552
  25. 166375
  26. 551368
  27. 658503
  28. 9261
  29. 373248
  30. 42875
  31. 328509
  32. 314432
  33. 50653
  34. 681472
  35. 912673
  36. 389017
  37. 1331
  38. 857375
  39. 328509
  40. 912673

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