Respuesta:
1 - 12+(+3-5)=
12+(-2)
12-2= 10
2- 14+(+12-10)=
14+(+2)
14+2=16
4- 15-(2-9)=
15-(-7)
15+7= 22
5- 11-(-6+3)=
11-(-3)
11+3= 14
6- 10-(-7-5)=
10-(-12)
10 +12= 22
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Respuesta:
1 - 12+(+3-5)=
12+(-2)
12-2= 10
2- 14+(+12-10)=
14+(+2)
14+2=16
4- 15-(2-9)=
15-(-7)
15+7= 22
5- 11-(-6+3)=
11-(-3)
11+3= 14
6- 10-(-7-5)=
10-(-12)
10 +12= 22