Explicación paso a paso:
11 - 3 = 8
13+12=25
85 - 35=50
15 +10 = 25
30 + 2 = 32
-2+4=2
7 - (- 3 )= 10
-25+25=0
4+(-4)=0
-55-23=-78
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Explicación paso a paso:
11 - 3 = 8
13+12=25
85 - 35=50
15 +10 = 25
30 + 2 = 32
-2+4=2
7 - (- 3 )= 10
-25+25=0
4+(-4)=0
-55-23=-78