Errata


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The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Corrected".

The following errata were submitted by our customers and approved as valid errors by the author or editor.


Color Key: Serious Technical Mistake Minor Technical Mistake Language or formatting error Typo Question



Version Location Description Submitted By Corrected
Printed Page 21
Big Bag o' Games graphic

On page 2 the games system is called KillerX, on page 21 it is called oPod.

Note from the Author or Editor:
change game system name in the graphic to KillerX from oPOD.

jr.larsen 
Printed Page 30
KillerX 2.0 graphic

This is really minor, but:
The OPOD name is in the item code for the game system. For consistency it should be KILLX-112.

Note from the Author or Editor:
The OPOD name is in the item code for the game system. For consistency it should be KILLX-112. Change it to KILLX - 112

jr.larsen 
Printed Page 70
First problem - solution to 6 + 5x - 8y + 3y

The problem simplifies to: 2 + 3x -8y + 3y; the final answer is given as 3 + 3x -5y.
It should be : 2 + 3x -5y

Tracey Pilone
Tracey Pilone
O'Reilly AuthorO'Reilly Blogger 
Printed Page 70
Solution to the final problem starting with (9 times3)/x times xy

the final question simplifies to 25y-16 +.5 -x. The final answer should be 25y-15.5-x.

Tracey Pilone
Tracey Pilone
O'Reilly AuthorO'Reilly Blogger 
Printed Page 134
6. down

Question
Down 6.
Exponent ??
I go for Base * Base * Base :->

Answer 139 Exponent ??

Note from the Author or Editor:
Answer to 139 needs to be changed to "base"

Dimitri 
Printed Page 187
Bottom right hand page

In the sidebar it states that "...the RISE of the slope is that number, and the RUN of that slope is 1" Rise and run are backwards.

Tracey Pilone
Tracey Pilone
O'Reilly AuthorO'Reilly Blogger 
Printed Page 250
the Graph

c + 0.4p = 2.6
(0,2.6) (6.5,0)

Then (4,1) is better in focus

Grtzzz Dimitri

Note from the Author or Editor:
Perhaps shift c + 0.4p = 2.6 down slightly so the intersection is more perfectly over (4,1).

Dimitri 
Printed Page 269
Problem statement (repeated on the next page)

Also, on pages 269 and 270 the money collected is $31,566 in the question, and $31,568 in the answer. The problem statements should be corrected to reflect the $31,568.

Tracey Pilone
Tracey Pilone
O'Reilly AuthorO'Reilly Blogger 
Printed Page 273
Mystery description

On p. 273 where it says "Kathleen said that she bought twice as many dresses as shoes and got 6 things all together" it will be changed to say something like "there are a total of 6 bags, with 2 bags per dress and 1 bag per pair of shoes." That means that we'll keep the 2d + s =6 and then we still have parallel lines.

Tracey Pilone
Tracey Pilone
O'Reilly AuthorO'Reilly Blogger 
Printed Page 312
Bottom right example

A minus sign has been lost in the working, with the error propagated to the following lines.

8x + 24x -16x = 2400 becomes 8x(1 + 3 + 2) = 2400

It should be 8x(1 + 3 - 2) = 2400.

Note from the Author or Editor:
change 8x(1 + 3 + 2) = 2400 to 8x(1 + 3 - 2) = 2400
change 8x(6) to 8x(2)
change 48x/48 to 16x/16
change 2400/48 to 2400/16
change x = 50 to x = 150

jr.larsen 
Printed Page 312
bottom - left

suspicious variable transformation
Grtzzz . . . Dimitri

Note from the Author or Editor:
need to change the equation to have p as the variable, not z. the first line should read p/3 - 5/3 = 5

Dimitri 
Printed Page 418
crossword puzzle

Deja Vu
Page 373 and 418
Wrong crossword
Look at page 420

Grtzzz . . Dimitri

Note from the Author or Editor:
Page 373 is fine.

The crossword on p. 418 and 420 are the same one, but the format is different. The answers were generated from a different grid than the question. They need to match! The .cwz files should have been uploaded, but Tracey can change them if needed.

Dimitri 
Printed Page 426
third dotted line

-1(-d(m)) = (-7300+9(m)) closing parenthesis -1

Grtzz . . Dimitri

Note from the Author or Editor:
The line in question is missing the last parentheses. It should read

-1(-d(m)) = (-7300 + 9(m))-1

Dimitri 
Printed Page 472
'Try this' example

The example is set up to use 12.34 + 5.6, but the 'Right way' and 'Wrong way' both show 12.34 + 4.5

Note from the Author or Editor:
change 12.34 + 5.6 to 12.34 + 4.5

jr.larsen 
Printed Page 492
Worked examples Bake your fractions

Answer should be 3 16/28 not 3 22/28 for 2 6/7 x 1 1/4

100 divided by 28 is 3 with remainder 16 not 22.

Note from the Author or Editor:
Change the 22 in the solution to 16 for the 2 6/7 x 1 1/4 problem.

Alexander Mackenzie 
Printed Page 508
last problem

The answer for 27/4 is given as 8 3/4 but should be 6 3/4.

Note from the Author or Editor:
The answer for 27/4 is given as 8 3/4 but should be 6 3/4.

Esther 
PDF Page 518
first solution

The answer for 5^5 is given as

Note from the Author or Editor:
The answer for 5^5 is given as "3215" but should be "3125".

Stefan Zapf