Answer:
See picture for the operator precedence.
A very common pitfall is the << (shift) operator.
It has lower precedence than, for instance, the + operator, so a statement like:
int a = 3;
int c = a << 2 + 1;
will produce a different result than:
int c = (a << 2) + 1;
The first will evaluate to c = a<<3.
