740+240÷5×4 520×(80-720÷9)两题如何简便计算?请把答案详略写出
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740+240÷5×4 520×(80-720÷9)两题如何简便计算?请把答案详略写出
![740+240÷5×4 520×(80-720÷9)两题如何简便计算?请把答案详略写出](/uploads/image/z/17219855-47-5.jpg?t=740%2B240%C3%B75%C3%974+520%C3%97%EF%BC%8880-720%C3%B79%EF%BC%89%E4%B8%A4%E9%A2%98%E5%A6%82%E4%BD%95%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%3F%E8%AF%B7%E6%8A%8A%E7%AD%94%E6%A1%88%E8%AF%A6%E7%95%A5%E5%86%99%E5%87%BA)
740+240/5*4
=740+240*4*2/5*2
=740+192
=932
520*(80-720*9)
=520*(80-80)
=520*0
=0
=740+240*4*2/5*2
=740+192
=932
520*(80-720*9)
=520*(80-80)
=520*0
=0