5.2➗0.25+2.8✖️4用简便方法计算?
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5.2➗0.25+2.8✖️4
=5.2x4÷(0.25x4)+2.8x4
=5.2x4+2.8x4
=(5.2+2.8)x4
=8x4
=32
=5.2x4÷(0.25x4)+2.8x4
=5.2x4+2.8x4
=(5.2+2.8)x4
=8x4
=32
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