Answers

2014-09-14T18:02:43+08:00
 1. read the problem
2. determine what is known and what needs to be found
3. try a few numbers to get a general idea of what solution could be
4.  write an equation
5. solve the question by an inverse operations or by plugging in values
6. check your solution . that is satisfy the question? does it make sense in the context of the problem
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