So i$\text{'}$m just starting to learn computing language and i want to understand decimal, binary and hex better. Can you explain to me like i$\text{'}$m a five year old and really explain it to me because my teacher is not really good at it$.$

My problem is this: Assuming we are using $2\text{'}$s compliment system that is $1$ byte wide $($i$.$e$.$ we can use a maximum of $8$ bits$).$

Write in the decimal, hex and binary values for the following: $"$

For Tmin, Tmax, $-$Tmin and Tmax $+3$