【题目】将2.1﹣2.09=0.01,0.01×4.5=0.045,0.045÷0.45=0.1这三道算式列成一道综合算式是 .
【答案】(2.1﹣2.09)÷4.5÷0.45.
【解析】
试题分析:根据题意,先算2.1﹣2.09,所得的差再乘上4.5,所得的积再除以0.45,然后再列式解答.
解:将2.1﹣2.09=0.01,0.01×4.5=0.045,0.045÷0.45=0.1这三道算式列成一道综合算式是:(2.1﹣2.09)÷4.5÷0.45.
故答案为:(2.1﹣2.09)÷4.5÷0.45.
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