Question

1-calcule
a)(-5)+(-12)-(-18)=

b)(-12)-(-15)-(-25)=

c)(+30)-(-20)-(-50)+(+40)=

d)(-15)+(-18)-(-20)-(-30)-(+50)=

e)(-25)-(-12)-(+45)-(-14)​

Answer 1

a) (-5)+(-12)-(-18)=

(-17)-(-18)= -1

b)(-12)-(-15)-(-25)=

(-3)-(-25)= -22

c) (+30)-(-20)-(-50)+(+40)=

(+10)-(-10)= 0

d) (-15)+(-18)-(-20)-(-30)-(+50)=

(+33)-(-10)-(+50)=

(+23)-(+50)= -33

e) (-25)-(-12)-(+45)-(-14)=

(+13)-(+31)= -44

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