如题所述
简便点的话可以脱括号先算加法再算减法,下面写了一些步骤,题主可以参考参考
=55.25-17.3+4.75
=(55.25+4.75)-17.3
=60-17.3
=42.7
=55.25-17.3+4.75
=(55.25+4.75)-17.3
=60-17.3
=42.7
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第1个回答 2020-06-27
55.25-(17.3-4.75)的简便算法是:
=55.25-17.3+4.75
=60-17.3
=42.7
=55.25-17.3+4.75
=60-17.3
=42.7
第2个回答 2020-06-27
55.25-(17.3-4.75)二55.25-17.3+4.75=(55.25+4.75)-17.3二60-17.3二42.7
第3个回答 2020-06-27
55.25-(17.3-4.75)
=55.25-17.3+4.75
=(55.25+4.75)-17.3
=60-17.3
=42.7
=55.25-17.3+4.75
=(55.25+4.75)-17.3
=60-17.3
=42.7
第4个回答 2020-06-27
55.25-(17.3-4.75)
=55.25+4.75-17.3
=60-17.3
=42.7
=55.25+4.75-17.3
=60-17.3
=42.7