Question

1
$1 \div 2 + 18 \div 2 - 16 \div 2 + 11 \div 2$

Answer 1

$1 \div 2 + 18 \div 2 - 16 \div 2 + 11 \div 2 \\ \\ = \frac{1}{2} + \frac{18}{2} - \frac{16}{2} + \frac{11}{2} \\ \\ = \frac{1 + 18 - 16 + 11}{2} \\ \\ = \frac{30 - 16}{2} \\ \\ = \frac{14}{2} \\ \\ = 7$