a +(+9 - 4-7) - (-7-9 + 10) =
e +(+15-10-8 (-4+ 12 + 3) -2
b: -(-30 + 12-13+1)-( 9 -10 + 24)
1-1-(-8 + 1) +(-3-14)-(-7)+(+13)
c 15-(-3-5-8) - (+3-7)+(-7+9)=
g. -(-2+5+ 2) -(4-8) + (-9 - 12) =
d. -(-5+9) - (+7 - 2) - (+4-2-3-7) =
h. -(6-7)+(-9+4)-(-3+2)-(+7+2) =
con procedimiento por fa
Respuestas a la pregunta
A) +(+9-4-7) - (-7-9 + 10) =
5-7-(-7-9+7)
5-7-(-16+7)
5-7+9
-2+9
7
E)+(+15-10-8) (-4+ 12 + 3) -2
( 5-8)x(-4+12+3)-2
-3 x (-4+12+3)-2
-3 x (8+3)-2
-3 x 11 -2
-33-2
-35
B)-(-30 + 12-13+1)-( 9 -10 + 24) 1-1-(-8 + 1) +(-3-14)-(-7)+(+13)
-(-18-13+1)-(9-10+24)x1-1-(-8+1)-3-14-(-7)+13
-(-31+1)-(9-10+24)x 1-1-(-8+1)-3-14-(-7)+13
-(-30)-(9-10+24)x 1-1-(-8+1)-3-14-(-7)+13
-(-30)-(-1+24)x 1-1-(-8+1)-3-14-(-7)+13
-(-30)-23x1-1-(-8+1)-3-14-(-7)+13
-(-30)-23-1-1-(-7)-3-14-(-7)+13
-(-30)-23-1-(-7)-3-14-(-7)+13
30-23-1+7-3-14+7+13
7-1+7-3-14+7+13
6+7-3-14+7+13
13-3-14+7+13
10-14+7+13
-4+7+13
3+13
16
C)15-(-3-5-8) - (+3-7)+(-7+9)=
15-(-8-8)-(3-7)-7+9
15-(-16)-(-4)-7+9
15+16+4-7+9
31+4-7+9
35-7+9
28+9
37
G) -(-2+5+ 2) -(4-8) + (-9 - 12) =
-(3+2)-(4-8)-9-12
-5-(4-8)-9-12
-5-(-4)-9-12
-5+4-9-12
-1-9-12
-10-12
-22
D)-(-5+9) - (+7 - 2) - (+4-2-3-7) =
-4-(7-2)-(4-2-3-7)
-4-5-(4-2-3-7)
-4-5-(2-3-7)
-4-5-(-1-7)
-4-5-(-8)
-4-5+8
-9+8
-1
H)-(6-7)+(-9+4)-(-3+2)-(+7+2) =
-(-1)-9+4-(-3+2)-(7+2)
-(-1)-9+4-(-1)-(7+2)
-(-1)-9+4-(-1)-9
1-9+4+1-9
-8+4+1-9
-4+1-9
-3-9
-12