Vocabulary
A mathematical phrase that contains numbers, operations, and/or variables (but no = sign). Example: 5x + 4y + 5 - 2x
What is an expression?
3 + 5 x 2
What is 13
Write an expression for:
5 more than a number
What is n + 5
7w + 15 + 3w - 5
What is 10w + 10
What is the flat "side" of a 3D shape is called?
In an expression, the parts being added together or subtracted. Example: 4x + 3x + 3y + 7y
What are terms?
Simplify the expression: 15 - 7 + 8/ 2
What is 12
What is the expression for :
A number plus 7 times 3
What is n +7 x 3
What is the edge.
Terms that contain the same variable(s) raised to the same exponent. These terms can be combined. Example: 3x + 9x or 7y + 3Y
What are like terms.
26 - 9 + 6 * 6 / 4
What is 26
Write an expression for Trudy:
Trudy has four times as many video games as Sally, plus 3 more. Let x = number of video games for Sally.
What is 4x + 3
2f - 1 - (-6) + 5f
What is 7f + 5
What is the name of the total area of all the sides of a three-dimensional shape called?
Hint: It is the sum of the area of all the faces, bases, and surfaces of the shape.
What is surface area.
What is the name of the number in front of a variable called?
What is a coefficent?
3 * (4 + 6) - 5 + 2^2
What is 29
Write an expression:
The number of touchdowns Jose made last year was triple the number Devon made, plus one more. Let x = the number of touchdowns Russell scored.
What is 3x +1
-5r + 3q - 8q - r
What is -6r -5q
What area formulas would you need to use to find the surface area of a triangular prism?
Bonus: How many of each formula would you need?
What are Area of Triangle and Rectangle.
Bonus: 2 triangle, 3 rectancle.
-7 - -4 + 3^3 / (2+3)
What is 6
Write the simplified expression:
Ava scored some goals for her soccer team this season. Nora scored twice as many goals as Ava. Lena scored four times as many goals as Ava, plus one more. Let x = the number of goals Ava scored.
What is 7x +1
What is the surface area of a rectangular prism with length 5in, width 3in, and height 4in.
Area of Rectangle = l x w
Surface Area of rectangle = 2 (lw + lh + wh)
What is 94 in^2