Decomposing angles

The first instance of  is under the 4th Grade Math Mission. This exercise explores the angle addition (and subtraction) properties.

Types of Problems
There are three types of problems in this exercise:


 * 1) Non-pictured word problem: This problem describes a situation involving angles and the student is supposed to work the problem and give the answer.Decomp1.png
 * 2) Pictured word problem: This problem has a labelled picture associated with a word problem. The student is supposed to solve the problem and write the answer.Decomp1-5.png
 * 3) Diagram : This problem has a diagram drawn and the student is supposed to use the diagram to find a particular angle.Decomp2.png

Strategies
This exercise is easy to get accuracy badges because the problems either involve one step of addition or one step of subtraction. Speed badges should be easy, but it appears that the timing is still slightly tight at this time as research was not able to get many speed badges.


 * 1) Each problem is either subtracting two numbers, or adding two numbers.