Equations and Expressions
What is the difference between an equation and an expression?
An equation has an equal sign (2x = 24), but an expression does not (2x-8)
What does this symbol " ≥ " stand for?
Greater than or equal to
How many degrees is a right angle?
90 degrees
How many degrees are in a circle?
360 degrees
What is the difference between surface area and volume?
Surface area is for 2D objects (the area of all sides of a object) and volume is for 3D objects (the area inside of an object)
What is a variable?
A letter that represents an unknown number in an expression or an equation
Solve the following inequality:
6x < 42
x < 7
When you add the angles of a triangle together, how many degrees do you get?
180 degrees
What is the first three numbers of the numerical value of Pi?
3.14
Give me the name of TWO 3D shapes
Rectangular prism
Cube
Pyramid
Triangular prism
Cylinder
Sphere
......
x = 7
Solve the following inequality: -4x - 6 > 34
x < -10
Obtuse
What is the circumference of a circle?
The outside (perimeter) of it
The length of a rectangular prism is 6 inches, its width is 5 inches, and its height is 3 inches. What is its volume?
90 inches3
There is a trampoline ride that costs 5 dollars to get onto and 2 dollars for every minute you jump. If you get off the ride and pay 17 dollars how many minutes did you jump?
5 + 2x = 17
x = 6 minutes
Solve
-10 > -1 + -3x
x > 3
What do you call two angles that are right next to each other and equal 90 degrees when you add them together?
Complementary
What is the diameter of a circle?
a straight line from one side of a circle to the other side that passes through the center point.
The height, length, and width of a cube is 5 inches - what is its surface area?
5 x 5 = 25 inches
25 x 6 = 150 inches
331 students went on a field trip. Six buses were filled and 7 students traveled in cars. How many students were in each bus?
6x + 7 = 331
x = 54
Tammy is going to make scarves to sell in her store. She will give 5 away to her family and wants to have at least 30 to sell. Create an inequality with a variable to represent the situation.
x - 5 ≥ 30
Angle A and Angle B are supplementary angles. If Angle A is 100 degrees, how many degrees is Angle B?
80
If the diameter of a circle is 30 inches, how long is the circle's radius?
15 inches
What is the expression that we use to find the area of a circle?
A = (pi)r2