How much is x?
Simplify & Legal Moves
Building Expressions
What is that called?
Algebra tiles
100
x + 1 = 6
x = 5
100
Simplify:
y + y
2y
100
Which tiles are required to build the following expression: -3x + 4
Three negative (or unshaded) x-tiles and 4 positive (or shaded) unit tiles
100
In the expression 3x + 2, "x" is the ________.
Variable
100
If an algebra tile has an AREA of x, what is it called?
An x tile
200
2x = 14
x = 7
200
The combining of 2 positive x-tiles and 2 negative x-tiles is a "legal move" known as this.
Zero pairs
200
What is the expression for these algebra tiles?
2x2 - y + 2
200
The outside measurements of a figure are known as the _.
Perimeter
200
If an algebra tile has a perimeter of 4, what algebra tile is it?
The unit (or one) tile.
300
3x + 2 = 11
x = 3
300
Simplify:
7m + 10 + m + m + 4
9m + 14
300
In order to build the following expression, which tiles (if any) would go in the - region of the mat?
-3x + 6 - (9 - x)
9 shaded/positive tiles and 1 unshaded/negative
x-tile
300
In the expression 3x + 2, 2 is the __________.
Constant.
300
If a tile has an AREA of x • x, what tile is it?
The x2 tile.
400
5x + 10 = 30
x = 4
400
Tiles drawn in the negative region of an expression mat should be thought of as _
Opposite
400
Which expression has a greater value?
a) x + 2 - 3 + 2x + 2
b) 2 + -(-3x + 3)
a.) 1
b.) -1
a is greater
400
In the expression 3x + 2, 3 is the ___________.
Coefficient
400
You have an x tile. What is the perimeter?
x + 1 + x + 1 OR 2x + 2
500
2x + 13 = 14
x = 1/2 or 0.5
500
Simplify:
8v + 5a - 15 - 2v + a + v + 4
7v + 6a - 11
500
How would you build this on an Expression Math? (Hint: there is more than one option)
7 + -x + 2x - (-9 + 2x)
Or simplified to 16 - x
500
In x2, 2 is an ______.
Exponent.
500
You have an x tile, two x squared tiles, five unit tiles. Then you add three unit tiles, one x squared tile and 17 more x tiles. What is the total area of your tiles (as an expression)?
3x2 + 18x + 8