Addition and subtraction within 10

The first instance of the Addition and subtraction within 10 exercise is under the Early Math Math Mission. This exercise is a summary practice of all addition and subtraction facts up to ten.

Types of problems
There is one type of problem that shows up in this exercise:
 * 1) Answer the questions: There are four addition or subtraction facts asked at a time. The student is to type in the answer to all four facts correctly and then submit.Addsub.png

Strategies
These problems all involve small numbers so getting accuracy badges is easy. However, answering all four questions in the current timing requirements make the speed badges rather difficult at this time.


 * 1) All four questions you are asked on the problem will use the same operation, i.e., they will be four addition problems or they will be four subtraction problems.