Showing posts with label Patricia709. Show all posts
Showing posts with label Patricia709. Show all posts

Sunday, November 7, 2010

Order of operation- The Language Math

BEDMAS:

B-Brackets
E-Exponents
D-Division
M-Multiplication
A-Addition
S-Subtraction

Division,Multiplication,Addition and Subtraction has to be in order from left to right.


1. Annie has been asked to calculate 1.7+6/2. She claims the answer is 3.85. Do you agree? Explain why or why not.

I don't agree because she used addition before multiplying. If we do the order of operation Multiplication should go first before Addition.

2. Put Brackets in the following expression to get the Largest value possible.What problem solving strategy did you see?
3*2.8+6.4/4

(3x2.8)+6.4/4=
8.4+6.4/4=
8.4+1.6=
10=

3. Create a problem that could be solved using the following expression. 2.5 + 1.25 + 5 x 1.6.

2.5+1.25+5x1.6=
3.75+(5x1.6)=
3.75+8=
11.75=




Monday, October 18, 2010

Correction for number 11

Completion
Complete each statement.


Question: A line of reflection is also called a (n)

Answer: Mirror line.