1 resolva as expressões numéricas
a) 2+8-3-5+15
b)12+[35-(10+2)+2]
c)[(18+3.2):8+5.3]:6
d) 37+[-25-(-11+19-4)]
e) ja fiz
f)-8+{-5+[(8-12)+(13+12)]-10}
g) 3-{2+(11-15)-[5+(-3+1)1+8}
alguem me ajuda
Soluções para a tarefa
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a) 2+8-3-5+15
10 - 3 + 10
20 - 3
17
b)12+[35-(10+2)+2]
12 + [ 35 - 12 + 2]
12 + [ 23 + 2]
12 + 25 =
37
c)[(18+3.2):8+5.3]:6
[(18+6)÷8+15]÷6
[24÷8+15]÷6
[3+15]÷6
18÷6=
3
d) 37+[-25-(-11+19-4)]
37 + [ - 25 - ( 8 - 4 ) ]
37 + [ - 25 - 4 ]
37 - 29
8
f)-8+{-5+[(8-12)+(13+12)]-10}
8+[-5+9-10
8+[-5+1]
8+6=
15
g) 3-{2+(11-15)-[5+(-3+1)1+8}
3 - {2 + (- 4) - [5 + (- 2)] + 8}
3 - {2 - 4 - [5 - 2] + 8}
3 - {2 - 4 - 3 + 8}
3 - {2 - 7 + 8}
3 - {- 5 + 8}
3 - 3 =
0
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Bons estudos anjo :)