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  3. 231.2-198.7= ______ This is a simple subtraction problem. To solve this without

231.2-198.7= ______ This is a simple subtraction problem. To solve this without

游客2024-01-12  21
问题 231.2-198.7= ______
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答案  This is a simple subtraction problem. To solve this without a calculator, line up the decimal points and subtract (remembering to "borrow" and "carry"), as follows:
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