Properties and Mental Computation p. 80. Math talk What are some math properties that we use? Why do you think we have them? Do you ever use them?

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<ul><li><p>Properties and Mental Computationp. 80</p></li><li><p>Math talkWhat are some math properties that we use? Why do you think we have them? Do you ever use them?</p></li><li><p>Commutative PropertyCommutative Property of addition a+b = b+a</p><p>Commutative Property of multiplication a x b = b x a</p></li><li><p>Distributive PropertyThis property has multiplication and either addition or subtractiona(b + c) = ab + ac</p><p>a(b c) = ab - ac</p></li><li><p>Associative PropertyAssociative property of addition (a+b)+c = a+(b+c)</p><p>Associative property of multiplication (a x b) x c = a x (b x c)</p></li><li><p>Please look at p. 84 Properties of equalityReflexive property a=aSymmetric property a=b b=aTransitive property a=b and b=c, then a=c</p></li><li><p>Please look at p. 86 #5 #6</p></li></ul>

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