1. Mathematics
Order of Operations

2. Contest Quiz…
You have just won a new
bicycle, but the contest
requires you to answer a
skill testing question…

3. Skill-testing question
3 + 3 x 2 ÷ 3 = ?
How many found 4 as the answer?
How many found another answer? What is it? Why?

4. Skill-testing question
3 + 3 x 2 ÷ 3 =
In fact, the answer is 5!!!
Huh??!!

5. Try another…
How / why could
7 - 3 x 2 + 3
be equal to 4?

6. Order of Operations The “Order of Operations” is a
set of mathematical rules…
They are used to decide which
operations in an number
sentence or expression MUST be
done first to simplify the
expression…

7. Order of Operations What are these rules? How can we remember them?
We can use the acronym
“BEDMAS” to remember the
order for each operation in an
expression.

8. B rackets E xponents D ivision M ultiplication A ddition S ubtraction
“BEDMAS”
B rackets
E xponents
D ivision
M ultiplication
A ddition
S ubtraction
Together in order in which they occur
Together in order in which they occur

9. BEDMAS Note: Multiplication and Division are
applied together in the order
in which they appear.
Addition and Subtraction are
applied together in the order in which
they appear.

10. B E D M A S
So...
3 x ÷ 3
= ÷ 3
= 9 + 2
= 11

11. B E D M A S
Try this...
x 3 ÷ 5

12. Try these: 12 – 6 ÷ 3 (12 – 6) ÷ 3 2 x 3 + 12 ÷ 3 2 x 6 - 23
BEDMAS
Try these:
12 – 6 ÷ 3
(12 – 6) ÷ 3
2 x ÷ 3
2 x

13. BEDMAS
12 – 6 ÷ 3

14. BEDMAS
(12 – 6) ÷ 3

15. BEDMAS
2 x ÷ 3

16. BEDMAS
2 x

17. Order of Operations Online Worksheet
BEDMAS
When you’re ready for the
challenge…try this…
Order of Operations Online Worksheet