Chapter 4.3, Problem 5P

   Figure A in Figure 4.21 I shows a 5-unit- high, 3-unit-wide, and 2-unit-long box made out of blocks. Figures B through G of Figure 4.21 show different ways of subdividing the box into natural groups of blocks. For each of these ways of subdividing the box, use the definition of multiplication as we have described it to write an expression for the total number of blocks in the box. Each expression should involve the numbers 5, 3, and 2, the multiplication symbol, and parentheses. Explain why you write your expressions as you do.