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 159.2+220.2+169.2+144.2+144.2+144.2+194.2+119.2+119.2+119.2+119.2+119.2+119.2+368.9+407.2+407.2 的值.
    题型：数学计算
    解:
          159.2+220.2+169.2+144.2+144.2+144.2+194.2+119.2+119.2+119.2+119.2+119.2+119.2+368.9+407.2+407.2
        =379.4+169.2+144.2+144.2+144.2+194.2+119.2+119.2+119.2+119.2+119.2+119.2+368.9+407.2+407.2
        =548.6+144.2+144.2+144.2+194.2+119.2+119.2+119.2+119.2+119.2+119.2+368.9+407.2+407.2
        =692.8+144.2+144.2+194.2+119.2+119.2+119.2+119.2+119.2+119.2+368.9+407.2+407.2
        =837+144.2+194.2+119.2+119.2+119.2+119.2+119.2+119.2+368.9+407.2+407.2
        =981.2+194.2+119.2+119.2+119.2+119.2+119.2+119.2+368.9+407.2+407.2
        =1175.4+119.2+119.2+119.2+119.2+119.2+119.2+368.9+407.2+407.2
        =1294.6+119.2+119.2+119.2+119.2+119.2+368.9+407.2+407.2
        =1413.8+119.2+119.2+119.2+119.2+368.9+407.2+407.2
        =1533+119.2+119.2+119.2+368.9+407.2+407.2
        =1652.2+119.2+119.2+368.9+407.2+407.2
        =1771.4+119.2+368.9+407.2+407.2
        =1890.6+368.9+407.2+407.2
        =2259.5+407.2+407.2
        =2666.7+407.2
        =3073.9
    答案:159.2+220.2+169.2+144.2+144.2+144.2+194.2+119.2+119.2+119.2+119.2+119.2+119.2+368.9+407.2+407.2=3073.9

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