The order of operations (same as MATH):

1. (*, /, %) is higher than (+, -).

2. *, /, % are on the same level. That is, first come first serve.
                                  For example, 10/2*3=5*3=15
3. + and - are on the same level. That is, first come first serve.

4. % is a remainder operation. (That is, MOD)
                                For example, 5 % 2 = 1

5. There are some cases of division.

    a.  11 / 2 =5        (integer / integer = integer)
    b.  11 / 2. =5.5    (integer / real = real)
    c.  11. / 2 =5.5    (real / integer = real)
    d.  11. / 2. =5.5   (real / real = real)