Question

opera: a) (-4)×(-5)+(+7)-(-3)×(+2)
b) (-3)+(-7)+(-2)-(+3)+(+5)
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Answer 1

Respuesta:

a) +33

b) -10

Explicación paso a paso:

a) 20+(+7)-(-6)=

= 27+6=

= 33

b) (-10)+(-2)-(+3)+(+5)=

= (-12)-(+3)+(+5)=

= (-15)+(+5)=

= -10