B.E.D.M.A.S. 2

B- Brackets ( )

E- Exponents

D- Division /

M- Multiplication *

(In order from left to right)

A- Addition +

S- Subtraction -

(In order from left to right)

ex: (0.75 - 0.5) * (4.2 / 0.6) + 7.3 - 1.2 =

(0.75 - 0.5) * (4.2 / 0.6) + 7.3 - 1.2 =

0.25 * (4.2 / 0.6) + 7.3 - 1.2 =

0.25 * 7 + 7.3 - 1.2 =

1.75 + 7.3 - 1.2 =

9.05 - 1.2 =

7.85

Here is an illustration of it if you are confused.

• 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 Annie calculated 1.7 + 6 first which would lead to the answer 7.7. She should have divided 6 and 2 then add 1.7 which will lead to the answer 4.7.

• 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 × 2.8 + (6.4 ÷ 4) = 10

(3 × 2.8) + 6.4 ÷ 4 = 10

3 × (2.8 + 6.4) ÷ 4 = 6.9

• Create a problem that could be solved using the following expression.

2.5 + 1.25 + 5 × 1.6

Create your own answer by putting brackets on this expression.

To practice this, click this link:

http://cemc2.math.uwaterloo.ca/mathfrog/english/kidz/order.shtml

For students who like music and wants to not watching really boring and long videos but still want to learn, watch this then!!!