A product isnt changed at rearrangement of its

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Unformatted text preview: multiplication Commutative law of addition: m + n = n + m. A sum isn’t changed at rearrangement of its addends. Commutative law of multiplication: m · n = n · m. A product isn’t changed at rearrangement of its factors. Associative law of addition: (m + n) + k = m + (n + k) = m + n + k. A sum doesn’t depend on grouping of its addends. Associative law of multiplication: (m · n) · k = m · (n · k) = m · n · k. A product doesn’t depend on grouping of its factors. Distributive law of multiplication over addition: (m + n) · k = m · k + n · k. This law expands the rules of operations with brackets (see the previous section). Prime and composite numbers Numbers, which aren’t divisible by any numbers except 1 and itself, are called prime numbers. Numbers, which have also other factors, are called composite numbers. There is an infinite set of prime numbers. The set of them till 200 is: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199. Math I -3- Feel free to pass this on to your friends, but please don’t post it online. Discuss UPCAT and other college entrance exam questions and answers at Academic-Clinic’s Facebook Page. We encourage you to answer the questions we post there and actively participate in the discussions on our wall. For UPCAT, ACET, DLSUCET and USTET tips, tricks, news and other college entrance exam information, visit the Academic-Clinic website. Tell your friends and classmates to come find and join us. The more, the merrier. Good luck! AcademicAcademic Academic-Clinic.com The achiever’s guide to academic life and beyond… W ebsite: http://academic-clinic.com Facebook: http://www.facebook.com/academic.clinic Twitter: http://twitter.com/acadclinic College entrance exam and science high school entrance test tips. Conquer UPCAT, ACET, USTET, DLSUCET, PSHS-NCE, and other entrance tests. Fac...
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This note was uploaded on 07/21/2013 for the course UPCAT 2014 taught by Professor Otis during the Spring '13 term at University of the Philippines Diliman.

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