Fix My Mistake
9 - 3 x 2 = 12
9 -3 x 2 = 3
List the correct order for the order of operations.
Parenthesis (brackets, absolute value, all grouping symbols), Exponents , Multiplication/Division (interchangeable from left to right), Addition/Subtraction (interchangeable from left to right)
- {3 + 6}^2 + (1/2 x 2) - 14 / 7
80
(1/8 + 2 1/4) x (12.5 - 4.7) + 2/16 - 4
decimal and fraction
14.65 and 14 13/20
the sum or difference of same sign integers?
1.) same signs = add the numbers, and keep the same sign
2.) Keep, Change, Change
10÷5 x 2 = 1
10÷5 x 2 = 4
What are considered grouping symbols in order of operations ( 3 types) ?
absolute value, parenthesis, brackets
-(-6/3+5) - (0.75)^2 + 5.8
3.3625
-(15 - 5)^2 x 10 + 3
1003
Multiplying or Dividing different sign integers?
Different signs = negative answer
5 x 5 +1 = 30
5 x 5 + 1= 26
What is an exponent?
Powers that tell you how many times you will multiply the base by itself.
12 - 8 ÷ 2 + 3
11
6^3 x 8 + (- 9 - 6 )/3
1,723
Sum or difference of different sign integers?
1.) different signs = subtract the numbers, and keep the sign of the bigger number
2.) Keep, Change, Change
4 + 5 + 7 - 3 x 2 = 26
4 + 5 + 7 - 3 x 2 = 10
If I have addition and subtraction in my expression, I should move from ______ ___ _______.
left to right
15/60 x - l 0.25 + 2/8 l / 10
- 0.0125
( 10 + 19 - 5 ) x 2
48
Multiplying or dividing same sign integers?
Same sign = positive answer
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.
Why is it important to know order of operations?
So, that everyone is solving math problems in the same way.
-7^3 + 3 x 4 - (8 ÷ 4)
-333
0.15 x ( 1/4 / 3/12 + 2) - 8.3
decimal and fraction
-7.85 and - 7 13/20
Give the integer rule and/or method used to solve, solve the equation.
1.) 9 - (- 6 +2)
2.) -1/7 + 6/9
3.) -0.25/ - 0.5
4.) 5/15 (-3/6)
1. Subtracting integers , KCC, 13
2. Adding different sign integers, 11/21
3. Dividing same sign integers, 0.5
4. Multiplying different sign integers, - 1/6