中学生数学

2017, No.562(10) 49

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Adding and Subtracting Negative numbers

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<正>There is a passage called"Adding and Subtracting(减去)Negative numbers".We will study negative number Operation methodon the basis of the positive number,you will learn that minus a negative(负数)can be thought of as plus a positive.How do you deal with adding and subtracting negatives?The process works similarly(相似的)to

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