Question

11) Resolva as expressões:

a) 15 – (+9) - (-2)

b) 9 – (-7) – 11

c) (-4) - (-2) + (-6)

d) -2 – (-2) -4 – (-4)

e) 50 – 30 : 10 + 5

f) 20 + (-3) . (+4) – (-2)

g) -3 . (-2) + 5 . (-7)

h) 15 – (2-4) – 6

i) 6 – (-3-4) – 2

j) 10 – 2 – 5 – (+2) – (-3)

k) -3 + √16

l) 3√16 – 9

m) 2 + √4
√9

n) √1 + √9
√4 2

o) 1 - √4
√9

p) 10 . √4

q) √0 + √1 - √1
√4

r) 7⁰ - √64 + 3²

Answer 1

Resposta:Segue as contas abaixo na explicação

Explicação passo-a-passo:

a) 15 – (+9) - (-2)--->15-9+2--->17-9--->8

b) 9 – (-7) – 11--->9+7-11--->16-11--->5

c) (-4) - (-2) + (-6)--->-4+2+6--->-4+8--->4

d) -2 – (-2) -4 – (-4)--->-2+2-4+4--->0

e) 50 – 30 : 10 + 5-->50-3+5--->55-3--->52

f) 20 + (-3) . (+4) – (-2)--->20-12+2--->22-12--->10

g) -3 . (-2) + 5 . (-7)--->6-35--->-29

h) 15 – (2-4) – 6--->15-(-2)-6--->15+2-6--->17-6--->11

i) 6 – (-3-4) – 2--->6-(-7)-2--->6+7-2--->13-2--->11

j) 10 – 2 – 5 – (+2) – (-3)--->10-7-2+3--->13-9--->4

k) -3 + √16-->-3+4-->1

l) 3√16 – 9-->3.4-9-->12-9--->3

m) 2 + √4+ ou - √9--->2+2+3-->7 ou 2+2-3-->4-3-->7

n) √1 + √9 + ou -√4 + ou -2-->1+3+2+2-->8 ou 1+3-2-2-->4-4-->0

o) 1 - √4+ ou -√9--->1-2+3-->4-2-->2 ou 1-2-3-->1-5--->-4

p) 10 . √4-->10.2--->20

q) √0 + √1 - √1 + ou -√4--->0+1-1+2--->2 ou 0+1-1-2--->-2

r) 7⁰ - √64 + 3²--->1-8+9--->10-8--->2