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3.6x2.36十3.61x6.4怎么做

题目详情
3.6x2.36十3.61x6.4怎么做
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答案和解析
3.6x2.36十3.61x6.4
=3.6*2.36+36.1*0.64
=3.6*2.36+3.6*0.64+32.5*0.64
=3.6*(2.36+0.64)+32.5*0.64
=3.6*3+20.8
=10.8+20.8
=31.6