Question

ejercicios de operaciones combinadas secundaria , ayuda porfa

Answer 1

~ Ejercicios de operaciones combinadas:

$955 : 5 + ( \sqrt{64} + 3^{2} ) . 2 =$
$955 : 5 + (8 + 9) . 2 =$
$955 : 5 + 17 . 2 =$
$191 + 34 =$
$\fbox{225}$

$1 - \{ 5 + ( 9 - 100) . (-5) \} =$
$1 - \{ 5 + (-91) . (-5)\}=$
$1 - \{ 5 + 455 \} =$
$1 - 460 =$
$\fbox{-459}$

$( \frac{7}{5} + \frac{3}{5})^{2} + 993975 . 0 =$
$(\frac{7+3}{5})^{2} + 993975 . 0 =$
$( \frac{10}{5})^{2} + 993975 . 0 =$
$\frac{ 10^{2} }{ 5^{2} } + 993975 . 0 =$
$\frac{100}{25} + 993975 . 0 =$
$\frac{100}{25} + 0 =$
$\frac{100}{25} = \frac{4}{1} = \fbox{4}$

$(3,14 + 56,7 - 0,20) . 3 + (777 : 7 - 1080). 1 =$
$(3,14 + 56,7 - 0,20) . 3 + (111 - 1080) . 1 =$
$59,64 . 3 + (-969) . 1 =$
$178,92 + (-969) =$
$178,92 - 969 =$
$\fbox{-790,08}$

$(-3)^{3} : 3 + 3 . 3 - 3 =$
$-27 : 3 + 3 . 3 - 3 =$
$-9 + 9 - 3 =$
$0 - 3 =$
$\fbox{-3}$