Based on your answers to 3.13.1 and 3.13.2, does (A + B) + C = A + (B + C)?

Operations performed on fixed-point integers behave the way one expects—the commutative, associative, and distributive laws all hold. This is not always the case when working with floating point numbers, however. Let’s first look at the associative law. The following table shows sets of decimal numbers.

a. b. A 3.984375 x 10-1 3.96875 X 10 3.4375 x 10-1 8.46875 x 10 1.771 x 10 2.1921875 x 10