Add and subtract within 100 word problems 2

The first instance of  is under the Early Math Math Mission. This exercise uses various geometric models to increase understanding of addition and subtraction on numbers up to 100.

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


 * 1) Word problem with two numbers: This problem asks the student to solve a word problem with two numbers. Sometimes they will need to add, and other times they will need to subtract. There are problems of this type with pictures and without pictures.Aswp2-1-0.png
 * 2) Word problem with three numbers: This problem asks the student to solve a word problem with three numbers. Sometimes they will need to add, and other times they will need to subtract. There are problems of this type with pictures and without pictures.Aswp2-2-0.png

Strategies
This exercise is fairly simple so the accuracy badges are fine. The timing needed for the speed badges is still pretty tight, but the problems themselves are easy so it is medium difficulty for speed badges in general.


 * 1) This exercise has problems that seem to exclusively deal with subtraction. It is thus not necessary to completely read the problem and instead just subtract the numbers that are appearing.