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February 27, 2015

February 27, 2015

Posted by **allie** on Tuesday, January 22, 2008 at 10:03pm.

'solve problems as combination integer problems.remember to rewrite all double sign problems as combination problems before solving' and here's a question 50- -61+ - 170 =

- math -
**Reiny**, Wednesday, January 23, 2008 at 8:32amI believe they just want you to write it as

50 + 61 - 170 and then evaluate.

I find it puzzling why authors have to invent and come up with new language and new expressions of simple age-old problems.

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