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15 squared22516 squared25625 squared625square root of 21.4square root of 31.7square root of 52.2Associative Property(a+b)+c=a+(b+c)distributive propertyab+ac=a(b+c) OR ab-ac=a(b-c)Differences of Squaresa^2 - b^2 = (a+b) (a-b)supplementary anglestwo angles that form a straight lineacute angleangle is greater than 0 but less than 90 degreescomplementary anglestwo angles form a 90 degree angleArea of a rectangleA=lwPerimeter of a rectangleP=2l+2wArea of a circleA=pi(r^2)CircumferenceC=pi(d) or 2(pi)rLength of an arcArc=(x/360)x2(pi)rpi3.14 or 22/7VolumeV=lwhSurface areaS=6a^2: sum of the areas of all facesintegers... -3, -2, -1, 0, 1, 2, 3 ...neither positive nor negative0factordivisor Ex: 2 is a factor of 8multiplethe product of its factors (i.e. of its divisors)a divisor can be ___ or ____positive or negative1 is a __ of every integerfactor1 is not a multiple of any integer except __ and __1 and -10 is not a factor of any integer except ___not a factor of any integer except 0when an integer a is divided by an integer b, where b is a divisor of a, the result isalways a divisor of ar =a -qbr is always greater than or equal tozeror is always less thanb24 divided by 46 remainder 06 divided by 240 remainder 6an even integeris divisible by 2an odd integeris not divisible by 2the sum of 2 even integersis an even integerthe sum of 2 odd integersis an even integerthe sum of an even integer and an odd integeris an odd integerthe product of 2 even integersis an even integerthe product of 2 odd integersis an odd integerthe product of an even integer and an odd integeris an even integerprime numberan integer greater than 1 that has only 2 positive divisors: 1 and itselfthe only prime number that is even2an integer greater than 1 that is not a prime numbercomposite numberin a fraction, the denominator cannot beequal to zero-7/5 =7/-5(-3)(-3)=9(-3)^29-3^2-9a negative number raised to an even power isalways positivea negative number raised to an odd power isalways negativefor all nonzero numbers a, a^0 =10^0=undefinedfor all nonzero numbers a, a^-1=1/afor all nonzero numbers a, a^-2=1/a^2for all nonzero numbers a, a^-3=1/a^35280 feet=1 mile25^−½=(1/25)^½=?²=1/25milli1/1000centi1/100deci1/10deca10hecto100kilo10007¹=7(7/4)¹=7/4(4/7)⁻¹=(7/4)¹Plugging In"How Much...", "How many..." "What is the value of..."

Maths tricks

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