Order of Operations

Today in class we talked a little but about the Order of Operations. This is the order in which math problems should be completed.

The order of operations is probably the most important part of a mth problem. If a problem isnt solved in the proper order the whole problem can be wrong. The Order of Operations is more well known as PEMDAS or Please excuse my dear aunt sally (Parentheses, Expontents, Multiplication, Division, Addition, Substraction.)

One very important thing that should be noted with the Order of operations is in the Multiplication/division  and addition/subtraction. The two can be switched. For example in the Problem 9/3*4 you wouldn't want to multiply 3*4 first you would follow in order as the problem is written. The same rule is used for addition and subtraction.

This Website does a good job explaining the importance of the order of operations along with some examples for practice.

Games For Long Division!

I found this Game that teaches how to use Long Division.
The game takes you through each step it takes to solve using long division. It works best with mostly small numbers and has a little trouble when you get into bigger ones. It does a good job teaching the steps it takes to complete long division and shows how it changes with each problem.

Venn Diagrams

We took our first test today and there was some confusion on how to make a proper venn diagram when given a few numbers.

So If there are 150 total people and you have the total amount of people in each section which adds up to be too much.
The key to solving the problem after the Diagram is drawn is to start in the center and subtract out. The last step is when you make the last subtraction to remember to subtract the center numeral as well as the two others. This website gives a more in depth step by step process to solving Venn Diagrams.