You are not logged in.

 Discussion: All Topics for Patterns and sequences Topic: Order of Operations (BOMDAS)

 Post a new topic to the All Content for Patterns and sequences discussion
 << see all messages in this topic < previous message | next message >

 Subject: Simplify the OOO using terms Author: Mathprof Date: Mar 24 2003
My students never have problems with Order Of Operations because they are told
to split all expressions into terms.

A term starts with a + or - that is NOT in parentheses.

Thus, to evaluate 5*4 +3(6-8)+3^2-8+5

the student writes 5*4   +3(6-8)   +3^2   -8   +5

Each term is evaluated    +20  -6  +9  -8  +5

The reults are now combined according to the rules of Algebra.   +34 -14 =
+10

Students discover that the individual terms can be evaluated in ANY order.

Creating terms is particularly important with expressions such as  10-3(2)
where students tend to write 7(2)=14

Of course, all this assumes that students know how to oparte with signed
numbers.

 Reply to this message Quote this message when replying? yes  no
Post a new topic to the All Content for Patterns and sequences discussion

Discussion Help