Question

determine o valor da expressões
a) 61-4.(-15)+202:(-2)=
b) 47+(-7).(+7)-27:(+9)-(-1)=

Answer 1

a) 61-4.(-15)+202:(-2)
61 - 60 - 101
1-101 = -102

b)47+(-7).(+7)-27:(+9)-(-1)
47 - 49 - 3 + 1
-2-3+1
-5+1= -4