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 (0.582-0.574)*1000+(0.583-0.574)*1000+(0.575-0.574)*1000+(0.576-0.574)*1200-0.4 的值.
    题型：数学计算
    解:
          (0.582-0.574)*1000+(0.583-0.574)*1000+(0.575-0.574)*1000+(0.576-0.574)*1200-0.4
        =0.008*1000+(0.583-0.574)*1000+(0.575-0.574)*1000+(0.576-0.574)*1200-0.4
        =0.008*1000+0.009*1000+(0.575-0.574)*1000+(0.576-0.574)*1200-0.4
        =0.008*1000+0.009*1000+0.001*1000+(0.576-0.574)*1200-0.4
        =0.008*1000+0.009*1000+0.001*1000+0.002*1200-0.4
        =8+0.009*1000+0.001*1000+0.002*1200-0.4
        =8+9+0.001*1000+0.002*1200-0.4
        =8+9+1+0.002*1200-0.4
        =8+9+1+2.4-0.4
        =17+1+2.4-0.4
        =18+2.4-0.4
        =20.4-0.4
        =20
    答案:(0.582-0.574)*1000+(0.583-0.574)*1000+(0.575-0.574)*1000+(0.576-0.574)*1200-0.4=20

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