Question

1°) Resolva as expressões com números inteiros.

a) 2 . ( - 15 ) + 5 . ( + 2 ) - 5 . ( - 15 )

b) ( - 25 ) . ( - 3 ) - 4 . ( - 25 ) + 200

c) ( - 140 ) : ( + 2 ) + ( - 45 ) . ( - 2 )

Answer 1

a) -30+10+75
-30+85
55


b)+75+100+200
375

c)-70+90
20