Question

Determine o valor das expressões numéricas:
A)3×8-15÷3
B)6^2÷9+5×6
C)8^2÷(3^2-1)
D)12- {20-[(5^1+2^3÷4)+(3×2-2^2)]}
E)3×2^2-{5×2^2-[(5+2^3÷4)+(3×2-4)]}

Answer 1

a) 24 - 5

19
b) 36 ÷9 + 30
4 +30
34
c) 64 ÷ ( 9 - 1 )
64 ÷ 8
8
d) 12 - { 20 -[ ( 5 + 8 ÷ 4 ) + ( 6 - 4 ) ]}
12 - { 20 - [ ( 5 + 2 ) + ( 2 ) ] }
12 -{ 20 - [ 7 + 2 ] }
12- { 20 - 9 }
12 - 11
1
e) 3 × 4 - { 5 × 4 - [ ( 5 + 8 ÷ 4 ) + ( 6 - 4 ) ]}
12 - { 20 - [ 5 + 2 + 2 ] }
12 - { 20 - 9}
12 - 11
1