Вычислите ( 30 + 1 ) ( 30-1 ) , 199× 201 , 55^-45^ ,61×59

Question

Вычислите ( 30 + 1 ) ( 30-1 ) , 199× 201 , 55^-45^ ,61×59

Answer 1

900-1=899
39999
-
3599
......................