【題目】將2.1﹣2.09=0.01,0.01×4.5=0.045,0.045÷0.45=0.1這三道算式列成一道綜合算式是 .
【答案】(2.1﹣2.09)÷4.5÷0.45.
【解析】
試題分析:根據(jù)題意,先算2.1﹣2.09,所得的差再乘上4.5,所得的積再除以0.45,然后再列式解答.
解:將2.1﹣2.09=0.01,0.01×4.5=0.045,0.045÷0.45=0.1這三道算式列成一道綜合算式是:(2.1﹣2.09)÷4.5÷0.45.
故答案為:(2.1﹣2.09)÷4.5÷0.45.
科目:小學數(shù)學 來源: 題型:
【題目】已知甲數(shù)與乙數(shù)的比是2:3,并且甲數(shù)比乙數(shù)少10,那么甲數(shù)是________,乙數(shù)是________.
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