PEMDAS
What does the "P" in PEMDAS stand for?
Parentheses
What does the distributive property allow you to do with an expression like a(b + c)?
To multiply a by both b and c .
What is a ratio?
A comparison of two quantities, showing how many times one value contains or is contained within the other.
What is a proportion?
A proportion is an equation that states that two ratios are equal.
Is this an expression:
4x+2=4
No
Solve: 8 + 2 X 5
18
Simplify the expression using the distributive property: 3(2 + 5)
If there are 4 cats and 6 dogs, what is the ratio of cats to dogs?
4:6
Explain why the distributive property allows us to write:
A(B+C) = AB+AC
We multiply the outside term by everything inside.
Simplify the expression: 3x + 4x.
7x
Evaluate: (3 + 7) X 2 - 4
16
Apply the distributive property to simplify: 4(x + 3)
4x + 12
A recipe calls for 2 cups of sugar for every 5 cups of flour. What is the ratio of sugar to flour?
2:5
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Evaluate the expression 2a + 3b when a = 3 and b = 4.
18
12 ÷(2 + 4) X 3
6
Use the distributive property to rewrite: 2(3x + 4y - 5)
6x + 8y - 10
If a class has 15 boys and 10 girls, what is the ratio of girls to the total number of students? Simplify!
2:5
If 5 apples cost $2, how much do 15 apples cost?
6
What is the simplified form of the expression 5(2x + 3) - 4?
10x + 11.
Evaluate the expression: 5×(6+4)÷35×(6+4)−32÷3.
Answer in demical
Approximately 3.619
If 5(x + 2) - 3(x + 1) is simplified using the distributive property, what is the final expression?
2x + 7
A map shows a distance of 3 inches representing 12 miles. What is the ratio of inches to miles?
1:4
The ratio of boys to girls in a class is 3:4. If there are 24 boys, how many girls are in the class?
32 girls
If x = 2 and y = 3, evaluate the expression 4x^2 + 2y - 5.
17