总述：本次共解3题。其中
           ☆算术计算3题

〖1/3算式〗
    作业：求算式 0.08+(3.2+1.5)*7.3+0.05*0.4-0.002 的值.
    题型：数学计算
    解:
          0.08+(3.2+1.5)*7.3+0.05*0.4-0.002
        =0.08+4.7*7.3+0.05*0.4-0.002
        =0.08+34.31+0.05*0.4-0.002
        =0.08+34.31+0.02-0.002
        =34.39+0.02-0.002
        =34.41-0.002
        =34.408
    答案:0.08+(3.2+1.5)*7.3+0.05*0.4-0.002=34.408
〖2/3算式〗
    作业：求算式 8/(3.21+0.79)+10/(4.23+0.77) 的值.
    题型：数学计算
    解:
          8/(3.21+0.79)+10/(4.23+0.77)
        =8/4+10/(4.23+0.77)
        =8/4+10/5
        =2+10/5
        =2+2
        =4
    答案:8/(3.21+0.79)+10/(4.23+0.77)=4
〖3/3算式〗
    作业：求算式 1+1.2+1.23+1.234+1.2345+1.23456+1.234567 的值.
    题型：数学计算
    解:
          1+1.2+1.23+1.234+1.2345+1.23456+1.234567
        =2.2+1.23+1.234+1.2345+1.23456+1.234567
        =3.43+1.234+1.2345+1.23456+1.234567
        =4.664+1.2345+1.23456+1.234567
        =5.8985+1.23456+1.234567
        =7.13306+1.234567
        =8.367627
    答案:1+1.2+1.23+1.234+1.2345+1.23456+1.234567=8.367627

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