Vocabulary
This type of math problem has no equal sign.
Expression
What is the next number in the pattern? 55, 56, 58, 61, 65, ____
70
The goal to solving equations.
First to isolate the variable. Then to find a value for the variable that makes the equation a true statement.
Name the 'like terms' in the expression below:
6x2 - 12x + 5y + 2x2 - 4y
6x2 and 2x2
5y and 4y
Solve: k/8 =24
k=192
Another word for the letters used in expressions and equations.
Variable
How many sides does a stop sign have?
Eight sides.
Write the algebraic equation for: the sum of x and z is 15 less than x.
x + z = x - 15
Simplify 2(2b +5 -3)
4b + 4
Solve the following one-step equation:
6y = 36
y = 6
A number that stands alone in expressions and equations
Constant
When did Mrs. Marlowe graduate from High School?
1993
Write ⅔ r² in verbal algebraic form.
The product of two-thirds and r squared.
Evaluate: 2x2+8x−2, when x=3
40
Solve the following two-step equation:
28 = 4(1 + 3d)
d = 2
What does the equal sign tell us?
That two expressions are equivalent.
What is the most important part of learning a new math standard?
The mistakes!
OR RATHER...
Making mistakes and figuring out what you did wrong so you can persevere!
Alya orders 250 pencils and 500 calculators printed.
Write an algebraic expression that represents the total number of pencils and calculators cost (x).
250p + 500c = x
Evaluate: 2(8r−6) + 18r + 2
34r - 10
List the 5 steps for solving an equation.
Distribute, combine like terms, add or subtract, multiply or divide, check.
List 2 terms for each operation below:
addition, multiplication, and division
sum, added to, plus, product, multiplied by, quotient, divided by
Name 3 countries that start with the letter, S.
Spain, Sweden, Sudan, South Africa, Switzerland, South Korea
The length of a rectangle is 3 inches more than the width. If the perimeter is 26 inches. The length of the rectangle is?
What is 8 inches.
The width of a rectangle measures (7f-4) centimeters, and its length measures (2f+5) centimeters.
Write an expression (make sure to combine like terms) that represents the perimeter, in centimeters, of the rectangle?
7f - 4 + 7f - 4 + 2f + 5 + 2f + 5
18f + 2
Solve the following equation:
39 = 3/11z
z = 143