Equations
Mean, Median, Mode, Range...
Inequalities
Absolute Value
Area
100
A letter that represents an unknown number is called a...?
(If you spelled it wrong but you can say the right word you're correct)
A variable
100
Find the mean:
2, 2, 4, 8
Mean: 4
100
Make a number line for
x < 7
Dot on 7, open circle, line goes to the LEFT.
100
| - 10 |
Find the absolute value
10
100
Find the area of a rectangle with a length of 12 and width of 8.
96
200
When solving an equation like
x + 5 = 12
WITHOUT GIVING ME THE ANSWER tell me how to solve it.
(How do you get x by itself?)
Do the OPPOSITE to the other side.
OR
Subract 5
OR
12 - 5
200
Find the mode:
5, 4, 9, 1, 5, 4, 1, 5
Mode: 5
200
Make a number line for
15 < y
Dot on 15, open circle, arrow goes to the RIGHT.
200
|3 x -3|
9
200
Find the area of the square with a side length of 20
400
20x20=400
300
Solve: 12x = 60
x = 5
300
4, 18, 11, 7, 20, 9
Find the range.
20 - 4 = 16
Range is biggest minus smallest.
300
Suzy has 15 dollars or less.
Write this as an inequality.
S < 15 OR 15 > S
Line should be UNDER the symbol.
300
| -5 + - 8|
13
300
Find the area of a triangle with a base of 10 and a height of 12
60
10x12 = 120 divide by 2 = 60
400
x/5 = 100
x = 500
400
Find the median:
6, 14, 3, 11, 19, 8
Median 16
400
Samuel goes to the mall and spends OVER 60.
Write this as an inequality.
s > 60
OR
60 < s
NO LINE UNDER. NOT EQUAL.
400
| -6 + -12|
18
400
Pick a number, multiply it by the other two. Multiply the two you didn't pick. Add them all. Times two.
3 x 9 = 27
3x 9 = 27
9 x 9 = 81
27 + 27 + 81 = 135 x 2 = 270
500
2x + 7 = 21
x = 7
500
14, 16, 14, 18, 20, 16, 14, 18, 22, 16
Find the mean AND the mode.
Mean: 16.8
Mode: 14 and 16
500
David spends NO MORE THAN $40 at Publix.
Write this as an inequality.
d < 40
OR
40 > d
LINE UNDER THE SYMBOL.
500
- | 10 x - 2|
-20
negative was on the outside :)
500
Find the surface area of the pyramid:
Find the area of one triangle: 4x3 = 12/2 = 6
There's 4 triangles. So 6x4 = 24
Then get the square: 3x3 = 9
24 + 9 = 33