(+43)−(+15)=
\( (+43)-(+15)= \)
\( (+71)+(-18)= \)
\( (+0.5)+(+\frac{1}{2})= \)
\( (-2^2)-(-3\frac{3}{4})= \)
\( (-\frac{2}{4})-(+3.5)= \)
\( (+\frac{18}{6})-(-\frac{1}{4})= \)
\( (-3\frac{2}{6})+(-2.75)= \)
\( (+2.16)+(-4\frac{1}{16})= \)
\( (+x^2)+(-9)= \)
\( (-x)^2-(+25)= \)