While we strive to create a perfect resource, not even multiple error checks catch everything. Generating 1000+ pages of new material, it’s impossible to catch everything. What follows is a list of typos that I am aware of in either the Tussy IRB / Workbooks or in various editions of the Algebra Activities IRB / Workbooks. If you know of a typo that is not on this list, please let me know and I will make sure it is corrected in the next edition.

**Tussy IRB / Workbooks** (copyright 2010)

- Page 2-35, Q7: Total sales should be $168,000. [This should also be corrected in the solution on p. 2-53.]

**Algebra Activities IRB / Workbooks **(copyright 2011)

FACT-10 In “Now you try these!” There should be a +2 instead of a -2 in the algorithm for #1. There should also be some restructuring of the solutions to account for the algorithms in the problems, view the fixed solutions here.

FACT-11 In “Now you try these!” There should be a *minus* in the algorithm instead of a *plus *in #1. The answer is fine.

FACT-13 In Example 2, in steps 5 and 6 the signs need to be corrected. The corrected text will look like this.

FACT-14 “The first one has been done for you.” In fact, it hasn’t. But it will be in future editions. 🙂

FACT-40 The 3rd bulleted example should begin with 5x^{3} instead of 5x^{2}.

RAD-51 Replace “Quotient Rule for Square Roots” with “Quotient Rule for Radical Expressions”

RAD-52 The 5th bulleted example, in the very last step, the index on the radical should be 4 instead of 5. (see correction here)

RAD-55 About 2/3 of the way down the page, we look at multiplying radical expressions with coefficients. There is an error in the qualifying statement, it should look like this instead.

RAD-63 Is missing a page number.

RAT-20 The answers to #10 and #14 do not appear in the grid. To fix this, make the highlighted changes on the grid. This is also corrected in the solution.