总述：本次共解1题。其中
           ☆算术计算1题

〖1/1算式〗
    作业：求算式 (3*(2.7+3+1.7+4+2.3+1.7+3.3+2+2.7+2.7)+2*(1+3.7+3.7+2.3+3.3+2.7+2.7+4)+1*(3.7+3.3+3.7+4))/50 的值.
    题型：数学计算
    解:
          (3*(2.7+3+1.7+4+2.3+1.7+3.3+2+2.7+2.7)+2*(1+3.7+3.7+2.3+3.3+2.7+2.7+4)+1*(3.7+3.3+3.7+4))/50
        =(3*26.1+2*(1+3.7+3.7+2.3+3.3+2.7+2.7+4)+1*(3.7+3.3+3.7+4))/50
        =(3*26.1+2*23.4+1*(3.7+3.3+3.7+4))/50
        =(3*26.1+2*23.4+1*14.7)/50
        =139.8/50
        =2.796
    答案:(3*(2.7+3+1.7+4+2.3+1.7+3.3+2+2.7+2.7)+2*(1+3.7+3.7+2.3+3.3+2.7+2.7+4)+1*(3.7+3.3+3.7+4))/50=2.796

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