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Andrew used the following mental math strategy to find the total number of hours he worked on his project.6.6+2.75+4.46.6+2.75+4.4(6.6+4.4)+2.756.6+4.4+2.75 11+2.75=13.7511+2.75=13.75 What is the reason
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Andrew used the following mental math strategy to find the total number of hours he worked on his project.6.6+2.75+4.46.6+2.75+4.4(6.6+4.4)+2.756.6+4.4+2.75 11+2.75=13.7511+2.75=13.75 What is the reason for his strategy?
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Jesse De Wit
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