Quandaries and Queries 

Name: jessica
Who is asking: Student
Question: Hi Jessica,
If I ask you to find 2 + 3 6 + 4 then you have to make a decision. Faced with this ambiguity, we need to agree on a procedure so that we all calculate 2 + 3 6 + 4 the same way. The agreeded on "rule" is that you multiply and divide before you add and subtract. Sometimes problems are even more complicated than that, like the expression you have in part 2. If you remove the brackets "[,]" and parentheses "(,)" you see that there are many ways you might calculate the resulting expression. The brackets and parentheses are used to group parts of the expression together. The procedure is to look at the expression in the most "inside" brackets or parentheses. (This is the B in BEDMAS, B for bracket.) In your example this is The term BEDMAS is just a memory devise to help us remember the order. Penny 

