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Development of professional strategies for improvement of teaching mathematics Introduction: The mastery of basic math is a vital lifelong skill. Without it, people can’t compare the price of products, determine whether they should refinance their mortgages or to calculate how their retirement accounts are doing. Basic arithmetic also is required at all levels of advanced math. Calculators are handy substitutes, but not everyone will carry calculator forever. Plus, they accurate as the data entered to them. Estimating skills are always needed to know whether calculator produced correct answers.
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