Question

Calcule o valor das expressões:
A)5^2÷(5+1-1)+4.2=
B)(3+1)^2+2.5-10^0=
C)3^2÷(4-1)+3.2^2=
d)70-[5.(2^2÷1)+3^2=

Answer 1

a)
${5}^{2} \div 5 + 8 \\ \frac{25}{5} = 5 + 8 = 13$
b)
${4}^{2} + 10 - 1 \\ 16 + 10 - 1 \\ 25$
c)
${3}^{2} \div 3 + 3 \times 4 \\ \frac{9}{3} = 3 + 3 \times 4 \\ 12 + 3 = \\ 15$
d)
$70 - 5 \times (4 \div 1)+ 9 = \\ 70 - 5 \times 4 + 9 \\ 70 - 12 + 9 \\ 67$