Distributive Property
To solve this problem, what is my first step?
2(x+10)
Draw an arrow from the 2 to the x and draw an arrow from 2 to the 10.
What does substitute mean?
To replace
When using the order of operations, what step is first?
A. Multiplication and Division
B. Exponents
C. Parentheses
C. Parentheses
What is a group of lions called?
A pride
Solve:
10(x+1)
10x + 10 * 1
10x + 10
Use the substitution method to solve this problem:
If x= 4, solve 3x+2
3*4 + 2
12 + 2
14
When using the Order of Operations, which direction do we solve Addition/Subtraction problems and Multiplication/Division problems?
______________ to ________________
Left to right
What is the closest planet to the Sun?
Mercury
Solve:
5(x+2)
5x + 5*2
5x + 10
Use the substitution method to solve this problem:
If x= 10, solve 5x + 14 / 2
5 * 10 + 14 / 2
50 + 14 / 2
50 + 7
57
What is the last step we use to solve Order of Operations?
Addition and Subtraction
+ and -
What animal has killed the most humans?
A mosquito
3 (x2 + 10)
3x2 + 3 * 10
3x2 + 30
Use the substitution method to solve this problem:
If x= 2 and y= 8, solve 3 (x + y)
3x + 3y
3 * 2 + 3 * 8
6 + 3 * 8
6 + 24
30
We use PEMDAS to remember which order we solve problems. What does the E stand for in PEMDAS?
*Hint: Look at my dear aunt Sally!!
Exponents
What is the biggest state in the US?
Alaska
What does it mean to distribute?
To give out or share equally
Use the substitution method to solve this problem:
If x= 4 and y= 11, solve 2x2 + 7y
2 * 42 + 7 * 11
2 * 16 + 7 * 11
32 + 7 * 11
32 + 77
109
Sally is using the Order of Operations to solve this problem: 2 + (18 * 2) - 10 / 2
Sally starts solving the problem by dividing 10 by 2. Did Sally start the right way?
No, she needs to start by multiplying 18 * 2
What is the tallest mountain in the world?
Mount Everest