Example 2. When one attempts to clarify the fact that “the distributive law applies to decimal fractions as well as Whole numbers,” it is not sufficient to simply calculate 2.3 x (4.2 + 1.6) and 2.3 X 4.2 + 2.3 X 1.6, and state that “since both give the same
answer, the distributive law applies.” The reason is that this is just a single case of arriving at the same answer and the induction that.
the law always holds is based on a single example. Indeed, no matter how many examples one has, this is still just induction.
Therefore, consider representing this calculation on a number line. This is the idea of representations. Figure 23 is the result