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 21.84*13.21+101.07*11.05+15.63*8.13+227.47*5.67+260.19*1.69-89.84*12.6-180.76*8.6-318.52*1.92 的值.
    题型：数学计算
    解:
          21.84*13.21+101.07*11.05+15.63*8.13+227.47*5.67+260.19*1.69-89.84*12.6-180.76*8.6-318.52*1.92
        =288.5064+101.07*11.05+15.63*8.13+227.47*5.67+260.19*1.69-89.84*12.6-180.76*8.6-318.52*1.92
        =288.5064+1116.8235+15.63*8.13+227.47*5.67+260.19*1.69-89.84*12.6-180.76*8.6-318.52*1.92
        =288.5064+1116.8235+127.0719+227.47*5.67+260.19*1.69-89.84*12.6-180.76*8.6-318.52*1.92
        =288.5064+1116.8235+127.0719+1289.7549+260.19*1.69-89.84*12.6-180.76*8.6-318.52*1.92
        =288.5064+1116.8235+127.0719+1289.7549+439.7211-89.84*12.6-180.76*8.6-318.52*1.92
        =288.5064+1116.8235+127.0719+1289.7549+439.7211-1131.984-180.76*8.6-318.52*1.92
        =288.5064+1116.8235+127.0719+1289.7549+439.7211-1131.984-1554.536-318.52*1.92
        =288.5064+1116.8235+127.0719+1289.7549+439.7211-1131.984-1554.536-611.5584
        =1405.3299+127.0719+1289.7549+439.7211-1131.984-1554.536-611.5584
        =1532.4018+1289.7549+439.7211-1131.984-1554.536-611.5584
        =2822.1567+439.7211-1131.984-1554.536-611.5584
        =3261.8778-1131.984-1554.536-611.5584
        =2129.8938-1554.536-611.5584
        =575.3578-611.5584
        =-36.2006
    答案:21.84*13.21+101.07*11.05+15.63*8.13+227.47*5.67+260.19*1.69-89.84*12.6-180.76*8.6-318.52*1.92=-36.2006

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