Posted - 11/23/2013 : 00:42:22 Which of these CANT give an integer divided by 10? A- sum of 2 odd integers B- integer less than 10 C- sum of 3 consec. Integers D- prod. Of 2 primes E- odd integer Ans: E TEXT: presents examples using simple integers to show E is correct BUT I want to teach students an algebraic expression so they can deal with larger divisors than 10. Is this possible? I am an ESLteacher

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Ultraglide

Posted - 11/24/2013 : 00:11:28 When presented with problems of this type, you just have to examine the cases to see which one does not fit. There are no algebraic methods as far as I can see.