Question

1calcule
A{-1+2-3(-4-9)}

B(-1-2-(-3-7)-(-9-15)-11

C{-17+19×(4-8-3)-25}+(-1-2

D(-1-2)-(3-4)+(-2-5)-1

E{-15-(11+4-(-5+3)-1}

F(18-16)+(18-17)+(18-18)-18-19

me ajudem por favor​

Answer 1

A) {-1+2-3(-4-9)}
{-1+2-3-5}
-3-3-5
0-5
5
B) (-1-2-(-3-7-(-9-15)+11
1-4-6-11
3-5
8
C){-17+19×(4-8-3)-25}+(-1-2
{-17+19×1-25}+1
36-25+1
11+1
12
D) (-1-2)-(3-4)+(-2-5)-1
1-1+3-1
3-1
2
E){-15-(11+4-(-5+3)-1}
{-15-15-8-1}
0-8-1
8-1
7
F) (18-16)+(18-17)+(18-18)-18-19
2+1+0-1
3+0-1
2