... AM Page 18 Mathematics of the Securities Industry is the book to referto both before and after taking the series 7 exam. It cov-ers all the mathematics you need to master to pass the exams for ... to the right of the decimal is less than 5 (4,3, 2, 1, or 0), then ignore all digits after the second one to the right of the decimal.Example: In the number 98.74285, the third digit after the ... digits to the right of the decimal place, for example,98.74 rather than 98.74285.To round off to two decimal places, you must examine the third digit to the right of the decimal.●If the third...