Question

resolva as expressões numéricas letra a) - 12 + 15 + (- 30) - 14
b) -18 + 12 - 17 + 2 - ( 6)
c)13 + 11- (- 17) + 9 - 2
d)-15 + 11- (- 9 + 8) - (10 )
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Answer 1

Explicação passo-a-passo:

a) -12 +15 +(-30)-14=

-12 +15 -30 -14=

+3-30-14=

-27-14=

-41

b) -18+12-17+2 -6=

-6-17+2-6=

-23+2-6=

-21-6=

-27

c) 13+11+17+9-2=

24+17+9-2=

41+9-2=

50-2=

48

d) -15+11-(-9+8)-10=

-15+11-(-1)-10=

-15+11+1-10=

-4+1-10=

-3-10=

-13