Worksheet W.A.4.1                                                     Name  ___________________________

precedence and assignment operators

Using precedence rules, determine the correct answer to the following expressions:

1.      8  +  3  *  6  /  5  %  6  -  9                     5.      12  *  3  %  8  / 2

2.      (8 * 3) / 9 + 2 * 5                                   6.      (12 * 3) % (8 / 2)

3.      (double)  9 / 4                                        7.      17.5  /  3.75  +  2

4.      (int) 17.5 / 3                                           8.      12.5  %  3

9.      Explain how this statement is evaluated:            a  =  b  =  2;

Translate each of the following statements into C++ code.  Where appropriate, several versions will be requested:

10.    Increment number  by 10.  (2 versions)

         a.  longer version                                   b.  using assignment operator

11.    Increment count  by 1.  (2 versions)

         a.  longer version                                   b.  using increment operator

12.    Multiply base  by 2.  (2 versions)

         a.  longer version                                   b.  using assignment operator

Determine the result of the following fragments of code:

13.    final value of a & b                                14.  final value of a & b

b = 2;                                                      b = 2;

a = ++b;                                                 a = b++;

15.    What is the most important reason for using constants in a program?