7.0875-42/3×0.72+57/64÷2.85=?要式子

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7.0875-42/3×0.72+57/64÷2.85=?要式子

7.0875-42/3×0.72+57/64÷2.85=?要式子
7.0875-42/3×0.72+57/64÷2.85=?要式子

7.0875-42/3×0.72+57/64÷2.85=?要式子
7.0875-42/3×0.72+57/64÷2.85
=7.0875-14×0.72+57/64÷2.85
=7.0875-10.8+57/64÷2.85
=7.0875-10.8+0.3125
=7.0875-10.8+0.3125
= - 3.4