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 49.211×(9.5+1.06-2.1+0.84)+105.784×(9.5+1.06-2.1-3+1.22)+241.001×(9.5+1.06-2.1-3-2.5+1.16)+280.91×1.45-53.30×0.52 的值.
    题型：数学计算
    解:
          49.211×(9.5+1.06-2.1+0.84)+105.784×(9.5+1.06-2.1-3+1.22)+241.001×(9.5+1.06-2.1-3-2.5+1.16)+280.91×1.45-53.30×0.52
        =49.211×9.3+105.784×(9.5+1.06-2.1-3+1.22)+241.001×(9.5+1.06-2.1-3-2.5+1.16)+280.91×1.45-53.30×0.52
        =49.211×9.3+105.784×6.68+241.001×(9.5+1.06-2.1-3-2.5+1.16)+280.91×1.45-53.30×0.52
        =49.211×9.3+105.784×6.68+241.001×4.12+280.91×1.45-53.30×0.52
        =457.6623+105.784×6.68+241.001×4.12+280.91×1.45-53.3×0.52
        =457.6623+706.63712+241.001×4.12+280.91×1.45-53.3×0.52
        =457.6623+706.63712+992.92412+280.91×1.45-53.3×0.52
        =457.6623+706.63712+992.92412+407.3195-53.3×0.52
        =457.6623+706.63712+992.92412+407.3195-27.716
        =1164.29942+992.92412+407.3195-27.716
        =2157.22354+407.3195-27.716
        =2564.54304-27.716
        =2536.82704
    答案:49.211×(9.5+1.06-2.1+0.84)+105.784×(9.5+1.06-2.1-3+1.22)+241.001×(9.5+1.06-2.1-3-2.5+1.16)+280.91×1.45-53.30×0.52=2536.82704

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