Complete the real and imaginary parts table

Write each value as $z=x+iy$, with real x and y. Then $\operatorname{Re}(z)=x$ and $\operatorname{Im}(z)=y$. In particular, $5i=0+5i$, $4=4+0i$ and $0=0+0i$. The Teacher note emphasizes that the imaginary part is the real coefficient y, so it does not contain i: $\operatorname{Im}(5i)=5$, not $5i$.