## Chapter 7 - Patterns Leading to subtraction

Unless otherwise stated, classwork from the book will not be put on the website. This allows for last minute changes to assignments based on questions asked during class. Hopefully this will alleviate some frustration for students who attempt to work ahead.

**Here's the process:**- Click on the section you want for homework. This will bring you to the corresponding Khan Academy video.
- Log in to Khan Academy using your Google NMCS I.D. (this step let's me know you watched the video)
- Start the video.

__7-1__Two Models for Subtractionhttp://www.khanacademy.org/math/arithmetic/addition-subtraction/v/subtraction-2

__7-2__The Slide Model for Subtractionhttp://www.khanacademy.org/math/arithmetic/negative-numbers/v/adding-subtracting-negative-numbers

__7-3__Solving x-a = bhttp://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/v/why-we-do-the-same--thing-to-both-sides--simple-equations

http://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/v/adding-and-subtracting-the-same-thing-from-both-sides

Practice: http://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/basic-equation-practice/e/one_step_equations

__7-4__Solving a-x = bNormal Class.

__7-5__Counting and Probability with Overlaphttp://www.khanacademy.org/math/probability/v/addition-rule-for-probability

__7-6__Angles and Lineshttp://www.khanacademy.org/math/geometry/angles/v/angles-at-the-intersection-of-two-lines

__7-7__Angles and Parallel Lineshttp://www.khanacademy.org/math/geometry/angles/v/angles-formed-between-transversals-and-parallel-lines

http://www.khanacademy.org/math/geometry/angles/v/angles-of-parallel-lines-2

__7-8__Special Quadrilateralshttp://www.khanacademy.org/math/geometry/polygons-quads-parallelograms/v/quadrilateral-overview

http://www.khanacademy.org/math/geometry/polygons-quads-parallelograms/v/quadrilateral-properties

__7-9__The Triangle-Sum Propertyhttp://www.khanacademy.org/math/geometry/triangles/v/triangle-angle-example-1

http://www.khanacademy.org/math/geometry/triangles/v/triangle-angle-example-2

http://www.khanacademy.org/math/geometry/triangles/v/triangle-angle-example-3