Most of these fall in the margins of the page, as do a number of side bar discussions on links to other disciplines or things to remember. In some places, including many of the expositions, these side images can distract from the main focus of the text. This problem is much less serious in the actual problem sets or reviews. This is an above average treatment of this topic. Evaluation and order of operation problems use powers, negative integers, decimals and a few fractions.
Good emphasis is put on grouping like terms.
Two step simplifications in which parentheses are removed and the like terms gathered are also present. This book gives a less than adequate treatment of this topic. The emphasis is clearly on powers and roots of whole numbers, although there is a discussion of powers of fractions and negative exponents in the second half of the book. There is no coverage of variable expressions with exponents, nor is there coverage of multiplication or division with powers. How to write a number in scientific notation is taught, but, in the absence of multiplication or division with exponents, it is not applied to problem solving or calculation.