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=

Order of Operation- The Language of Math

B- Brackets
E- Exponents
M- Multiplication
D- Division
A- Addition
S- Subtraction
Multiplication, division, addition, and subtraction have 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 with her answer because she added first before multiplying. But if we follow order of operation, multiplication should be done first before addition.

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


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


Here is a link that might help you.

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.