Evaluate the Expression
a ÷ 0.4 for a = 12
30
Ella bought a salad dressing for $8 and three tomatoes for t dollars each.
Write an expression for the total amount Ella spent.
a + 3t dollars
To solve or make an equation or expression smaller
Simplify
182 ÷ h × 3 for h = 2
273
1 ½ - b for b = ¼
1 ¼
Ella bought a salad dressing for $8 and three tomatoes for t dollars each.
If each tomato cost $2, how much did Ella spend?
$14
Acronym used in/for Order of Operations
PEMDAS
i ÷ 0.08 for i = 4
50
10 - c ÷ 5 for c = 25
5
Melanie is 3 years younger then James. Hawa is half Melanie's age. Let j be James' age.
Write an expression for Melanie's age.
j - 3
A math problem that does not have an equal sign
An Expression
g × ¼ + 4 ÷ ¼ for g = 4
17
d × 3 ½ for d = 8
28
Melanie is 3 years younger then James. Hawa is half Melanie's age. Let j be James' age.
Write an expression for Hawa's age.
½ × ( j - 3) OR ( j - 3) ÷ 2
Name for a number represented by a letter
Variable
(0.4 - h) × 5 for h = 0.1
1.5
11 × (1 + e) for e = 12
143
Melanie is 3 years younger then James. Hawa is half Melanie's age. Let j be James' age.
If James is 13 years old, how old are Melanie and Hawa?
Melanie: 10 years old
Hawa: 5 years old
What PEMDAS stands for
Parenthesis, Exponents, Multiply, Divide, Add, Subtract