TABE Math
coordinates of a point
(x,y) (3,4)
1 centimeter = ___ millimeters
10 millimeters
1 meter = ____ centimeters
100 centimeters
1 kilometer = ____ meters
1000 meters
1 foot = ____ inches
12 inches
1 lb. = __ ounces
16 oz
GCF of 18 and 27
18 = 1, 2, 3, 6, 9, 18 27 = 1, 3, 9, 27 GCF = 9
1 quart
2 pints or 4 cups or 32 fluid ounces
1 yard = ____ feet
3 feet
1 ounce (oz) = _____ milliliters (mL)
30 milliliters (mL)
1 gallon = ____ quarts
4 quarts
Quadrilateral
4 sided polygon
Pentagon
5 sides, 5 angles
1 mile = ____ feet
5,280 feet
Octagon
8 sides, 8 angles
Negative X Positive
= negative
negative divided by positive
= negative
Negative x Negative
= positive
Positive X Positive
= positive
Positive divided by a positive
= positive
negative divided by negative
= positive
Area of a circle
A = π r²
diameter of a circle
A line that passes through the center of the circle, connecting any two points; d = 2r
squared
A number multiplied by itself; 5²= 5x5
Right Triangle
A triangle that has a 90 degree angle; all angles total 180 degrees
obtuse angle
An angle that measures more than 90 degrees but less than 180 degrees
Adding and subtracting positive and negative numbers
Answer takes the sign of the bigger number
Circumference of a circle
C = π d
Improper Fractions to Mixed Numbers
Large number on top, Divide: 18/7 = 7√18 = 2 R4 or 2 4/7
Area of a square/rectangle
Length x Width; Inside of a square or rectangle
radius of a circle
Line from the center of the circle to any point on the edge of the circle; radius =1/2 the diameter
Cost with tax
Multiply % by price, add answer back to price; 6% sales tax on $13.00 = $13.00 x .06 = .78; $13.78
sales tax
Multiply % by price; 7% sales tax on $8.00 = $8.00 x .07 = .56
Down Payment
Multiply cost by % of down payment; 20% down payment on $300.00 = $60
Adding fractions with different denominators
Must rewrite with common denominator. 1/2 + 2/3 Lowest common denominator is 6. (2x3 = 6 for denominator, 1x3=3 for numerator) 1/2 = 3/6 (3x2 = 6 for the denominator, 2x2 = 4 for the numerator) 2/3 = 4/6 3/6 + 4/6 = 7/6 = (1 1/6)
slope
Rise over run
Order of fractions
Smallest bottom number is the largest fraction
perimeter
The distance around a figure, add all sides
Greatest Common Factor (GCF)
The largest factor that two or more numbers have in common; used to find denominators; GCF of 8 & 12 is 4
Mode
The number that occurs most often in a set of data
supplementary angles
Two angles whose sum is 180 degrees
Polygon
a flat shape with many straight sides
mixed number
a number made up of a whole number and a fraction 3 2/5
Square root
a number that when multiplied by itself equals a given number: square root of 49 = 7
Mixed fraction
a whole number and a fraction. Example 1 1/2
Adding fractions with common denominators
add the numerators, denominators stay the same
Pythagorean Theorem - Right Triangles
a²+b²=c²
Distance between two points
d = √(x₁-x₂)² + (y₁-y₂)²
How do you convert a mixed number to an improper fraction?
multiply the denominator by the whole number then add the answer to the numerator; 4 3/7 = 31/7
Hexagon
six sided figure
What does m stand for in y=mx+b?
slope of the line; rise over run
range
the difference between the highest and lowest scores in a distribution
complimentary angles
two angles that add up to 90 degrees
flip the second fraction and multiply
when you see a division sign between two fractions
Cross Multiply
when you see an = sign between two fractions
what does the b stand for in y=mx+b?
where the line crosses the y-axis; y-intercept
slope-intercept form
y = mx + b, where m is the slope and b is the y-intercept of the line.
Pi (π)
π = 3.14