Order of Operations

The language of Math

B- Brackets ( )
E- Exponents a²
D-Division (Division and Multiplication are in order from left to right)
M-Multiplication
A-Addition (Addition and Subtraction are in order from left to right)
S-Subtraction

Example:

2 + 3 x 4 =

2 + 12=

14=

Questions:

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

Answer: Annie is wrong because 4.7 is the right answer. This is how I got it.

1.7 + 6 ÷ 2 =

1.7 + 3 =

4.7=

2.Put brackets in the following expression to get the largest value possible. What problem solving strategy did you use?

Answer: I used multiplication and division.

Multiplication:

( 3 x 2.8 ) + 6.4 ÷ 4 =

8.4 + 6.4 ÷ 4 =

8.4 + 1.6 =

10 =

Division:

3 x 2.8 + ( 6.4 ÷ 4 ) =

3 x 2.8 + 1.6 =

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

Problem: Nicole went out to buy candies. The gum cost $1.25, the chocolate cost $2.5 and 5 lollipops cost $1.6 each. Nicole has $13, does she have enough money?

You also try this link.

How To Use BEDMAS

B - Brackets BEDMAS IS ABOUT FOLLOWING THE ORDER OF
E - Exponents BEDMAS TO SOLVE EQUATIONS
D - Division
M - Multiplucation
A - Addition
S - Subtraction

Note: -Division and Multiplucation goes left to right which ever one you see first, you use first.

Addition and Subtraction gors left to right which ever one you see first, you use first.
1 - 6 + 7 =
So you use subtraction first and then addition



HERE IS A LINK TO HELP YOU BEDMAS WITH YOUR http://www.funbrain.com/cgi-bin/alg.cgi?A1=s&A2=2

24 x 2 + 10 - 9 =
48 + 10 =
58 - 9 =
49

Geli has $4.99 and she needs to buy ice cream sandwiches. Ice cream sandwiches cost 0.50 each. How many ice cream sandwiches can she buy?

Answer: She can buy 50 ice cream sandwiches
Try and figure out why she can buy 50 ice cream sandwiches