Question

Fill in the blank

$\begin{array}{ccc}\left(111\right)& 128& 94\\ \left(132\right)& 156& 108\\ (-)& 87& 165\end{array}$

Answer 1

The first number in each row is half the sum of the second and the third numbers.
$(128+94)$ $÷$ $2=111$
$(156+108)$ $÷$ $2=132$
Thus, the missing number is $(87+165)$ $÷$ $2=126$