# Math Flashcards - Generalist.txt

 1 kilometer = _____ meters 1000 1 meter = ____ centimeters 100 1 centimeter = ____ millimeters 10 1 mile = ____ yards 1760 1 mile = ____ feet 5280 1 yard = ____ feet 3 1 foot = ____ inches 12 1 gallon = ____ quarts 4 1 gallon = ____ fluid ounces 128 1 quart = ____ pints 2 1 pint = ____ cups 2 1 cup = ____ fluid ounces 8 1 ton = ____ pounds 2000 1 pound = ____ ounces 16 Perimeter of a square 4s Perimeter of a rectangle 2l+2w or 2(l+w) Circumference of a Circle C=2πr or C=πd Area of a Square A=s2 Area of a Rectagle A=lw or A=bh Area of a Triangle A=1/2bh or A=bh/2 Area of a Trapezoid A= 1/2 (b1 +b2)h or A=((b1+b2)h)/2 Area of Circle A = πr2 Volume of a Cube V=s3 Volume of a Rectangular Prism V=lwh Pi π=3.14 or π=22/7 Operation: + addition Solution: Sum Operation: - subtraction Solution: difference Operation: x multiplication Solution: product Operation: divide Solution: quotient Order of Operations PEMDAS A number is divisible by 2 if . . . It is an even number A number is divisible by 3 if . . . The sum of its digits is divisible by 3 A number is divisible by 4 if . . . The last 2 digits are divisible by 4 A number is divisible by 5 if . . . The last digit is 5 or 0 A number is divisible by 6 if . . . It is divisible by both 2 and 3 A number is divisible by 8 if . . . The last 3 digits are divisible by 8 A number is divisible by 9 if . . . The sum of its digits is divisible by 9 A number is divisible by 10 if . . . The last digit is 0 Prime number A number with only 2 factors—1 and itself Composite number A number with more than 2 factors Greatest Common Factor (GCF) The largest factor that divides into 2 numbers Least Common Multiple (LCM) The smallest number (not 0) that 2 numbers will divide into evenly Percent Ratios Problem - z is what % of y? Solve using: = So, = What is 60% of 90? Decimal to Fraction the number after the decimal is the numerator; place value is the denominator Change .15 to a fraction .15 = Fraction to Percent change fraction to decimal; use rules to change decimal to percent = ____% = 5/3.0 = .6 = 60% Fraction to Decimal (divide) = 0.___ 4/1.00=.25 Decimal to Percent multiply by 100; decimal moves 2 places to the right; label percent .007 = ____% .007 = .7% Percent to Decimal divide by 100; decimal moves 2 places to the left; drop percent sign 8.5% = ___ 8.5% = .085 Percent to Fraction then reduce 35% = ______ freezing point of water 32oF __oC 0 Temperature Celcius to Fahrenheit Temperature Fahrenheit to Celcius Commutative Property (the numbers switch positions) Addition Commutative Property  (the numbers switch positions) Multiplication Associative Property (the parentheses change positions) Addition Associative Property (the parentheses change postions) Multiplication Inverse Property (addition uses the opposite, multiplication uses the reciprocal) Addition Inverse Property (addition uses the opposite, multiplication uses the reciprocal) Multiplication when a does not equal 0 Distributive Property (always involves 2 operations)    Cross Product Property - Cross Multiplication (use to prove 2 ratios are in proportion) is equivalent to Authorkcooper ID163114 Card SetMath Flashcards - Generalist.txt DescriptionMath Content Flashcards for the TeXes Generalist Updated2012-08-01T20:26:04Z Show Answers