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 (0.8-0.02×2)×(2.1-0.02)+(1.0-0.02×2)×(2.1-0.02)×14+(0.9-0.02×2)×(2.1-0.02)×8+(1.5-0.02×2)×2+(2.4-0.02×2)×(3.0-0.02) 的值.
    题型：数学计算
    解:
          (0.8-0.02×2)×(2.1-0.02)+(1.0-0.02×2)×(2.1-0.02)×14+(0.9-0.02×2)×(2.1-0.02)×8+(1.5-0.02×2)×2+(2.4-0.02×2)×(3.0-0.02)
        =0.76×(2.1-0.02)+(1.0-0.02×2)×(2.1-0.02)×14+(0.9-0.02×2)×(2.1-0.02)×8+(1.5-0.02×2)×2+(2.4-0.02×2)×(3.0-0.02)
        =0.76×2.08+(1.0-0.02×2)×(2.1-0.02)×14+(0.9-0.02×2)×(2.1-0.02)×8+(1.5-0.02×2)×2+(2.4-0.02×2)×(3.0-0.02)
        =0.76×2.08+0.96×(2.1-0.02)×14+(0.9-0.02×2)×(2.1-0.02)×8+(1.5-0.02×2)×2+(2.4-0.02×2)×(3.0-0.02)
        =0.76×2.08+0.96×2.08×14+(0.9-0.02×2)×(2.1-0.02)×8+(1.5-0.02×2)×2+(2.4-0.02×2)×(3.0-0.02)
        =0.76×2.08+0.96×2.08×14+0.86×(2.1-0.02)×8+(1.5-0.02×2)×2+(2.4-0.02×2)×(3.0-0.02)
        =0.76×2.08+0.96×2.08×14+0.86×2.08×8+(1.5-0.02×2)×2+(2.4-0.02×2)×(3.0-0.02)
        =0.76×2.08+0.96×2.08×14+0.86×2.08×8+1.46×2+(2.4-0.02×2)×(3.0-0.02)
        =0.76×2.08+0.96×2.08×14+0.86×2.08×8+1.46×2+2.36×(3.0-0.02)
        =0.76×2.08+0.96×2.08×14+0.86×2.08×8+1.46×2+2.36×2.98
        =1.5808+0.96×2.08×14+0.86×2.08×8+1.46×2+2.36×2.98
        =1.5808+1.9968×14+0.86×2.08×8+1.46×2+2.36×2.98
        =1.5808+27.9552+0.86×2.08×8+1.46×2+2.36×2.98
        =1.5808+27.9552+1.7888×8+1.46×2+2.36×2.98
        =1.5808+27.9552+14.3104+1.46×2+2.36×2.98
        =1.5808+27.9552+14.3104+2.92+2.36×2.98
        =1.5808+27.9552+14.3104+2.92+7.0328
        =29.536+14.3104+2.92+7.0328
        =43.8464+2.92+7.0328
        =46.7664+7.0328
        =53.7992
    答案:(0.8-0.02×2)×(2.1-0.02)+(1.0-0.02×2)×(2.1-0.02)×14+(0.9-0.02×2)×(2.1-0.02)×8+(1.5-0.02×2)×2+(2.4-0.02×2)×(3.0-0.02)=53.7992

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