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 2.2+1.8+5.1+2.8+1.2+0.9+1.3+2+2.3+3.8+3.6+2.2+9.5+3.1+3.1+1.85+13+9.15+1.5+3.1 的值.
    题型：数学计算
    解:
          2.2+1.8+5.1+2.8+1.2+0.9+1.3+2+2.3+3.8+3.6+2.2+9.5+3.1+3.1+1.85+13+9.15+1.5+3.1
        =4+5.1+2.8+1.2+0.9+1.3+2+2.3+3.8+3.6+2.2+9.5+3.1+3.1+1.85+13+9.15+1.5+3.1
        =9.1+2.8+1.2+0.9+1.3+2+2.3+3.8+3.6+2.2+9.5+3.1+3.1+1.85+13+9.15+1.5+3.1
        =11.9+1.2+0.9+1.3+2+2.3+3.8+3.6+2.2+9.5+3.1+3.1+1.85+13+9.15+1.5+3.1
        =13.1+0.9+1.3+2+2.3+3.8+3.6+2.2+9.5+3.1+3.1+1.85+13+9.15+1.5+3.1
        =14+1.3+2+2.3+3.8+3.6+2.2+9.5+3.1+3.1+1.85+13+9.15+1.5+3.1
        =15.3+2+2.3+3.8+3.6+2.2+9.5+3.1+3.1+1.85+13+9.15+1.5+3.1
        =17.3+2.3+3.8+3.6+2.2+9.5+3.1+3.1+1.85+13+9.15+1.5+3.1
        =19.6+3.8+3.6+2.2+9.5+3.1+3.1+1.85+13+9.15+1.5+3.1
        =23.4+3.6+2.2+9.5+3.1+3.1+1.85+13+9.15+1.5+3.1
        =27+2.2+9.5+3.1+3.1+1.85+13+9.15+1.5+3.1
        =29.2+9.5+3.1+3.1+1.85+13+9.15+1.5+3.1
        =38.7+3.1+3.1+1.85+13+9.15+1.5+3.1
        =41.8+3.1+1.85+13+9.15+1.5+3.1
        =44.9+1.85+13+9.15+1.5+3.1
        =46.75+13+9.15+1.5+3.1
        =59.75+9.15+1.5+3.1
        =68.9+1.5+3.1
        =70.4+3.1
        =73.5
    答案:2.2+1.8+5.1+2.8+1.2+0.9+1.3+2+2.3+3.8+3.6+2.2+9.5+3.1+3.1+1.85+13+9.15+1.5+3.1=73.5

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