Order of Operations

Fix My Mistake

100

9 - 3 x 2 = 12

9 -3 x 2 = 3

200

10÷5 x 2 = 1

10÷5 x 2 = 4 

300

5 x 5 +1 = 30

5 x 5 + 1= 26

400

4 + 5 + 7 - 3 x 2 = 26

4 + 5 + 7 - 3 x 2 = 10

500

The problem was 20 - 5 x 2 + 3. My answer was 33. What did I do wrong?

I did not multiply first. The answer should be 13.

Word Stuff

100

Give the correct order of operations.

Grouping symbols, Exponents, Multiplicative operations (multiply or divide), Additive operations (add or subtract)

200

What is the name we use to help us remember Order of Operations?

GEMA

300

What is this called?

4 x (3 + 5)

numerical expression

400

If I have addition and subtraction in my expression, I should move from ______ ___ _______.

left to right

500

Why is it important to know GEMA as a mathematician?

So that everyone is solving the problem in the same way

Solve 1

100

3 + 6 x 4

27

200

25 ÷ 5 -2

3

300

12 - 8 ÷ 2 + 3

11

400

20 ÷ (8-3) + 16 

20

500

7 + 3 x (8 ÷ 4)

13

Solve 2

100

(14 + 6) x (12 -4) -9

151

200

(15 - 5) x 10  + 3

103

300

6 x 8 + ( 7 - 6 )

49

400

( 10 + 19 -5 ) x 2

48

500

2 x ( 9 x 9 + 2) - 8

158

Mixed Review

100

the sum of 9 and 3 divided 3

( 9  + 3) ÷ 3

200

I need to find this before I can add/subtract fractions with unlike denominators. 

LCD (Least Common Denominator)

300

8  x 6

48

400

9 x 8

72

500

9 x 9

81