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 (31.4-0.24*2)*(1.35-0.24*2)+(48.6-0.24*2)*(15.5-0.24*2)*2+(6.28-0.24*2)*(2.25-0.24*2)+(51.16-0.24*2)*(8.91-0.24*2) 的值.
    题型：数学计算
    解:
          (31.4-0.24*2)*(1.35-0.24*2)+(48.6-0.24*2)*(15.5-0.24*2)*2+(6.28-0.24*2)*(2.25-0.24*2)+(51.16-0.24*2)*(8.91-0.24*2)
        =30.92*(1.35-0.24*2)+(48.6-0.24*2)*(15.5-0.24*2)*2+(6.28-0.24*2)*(2.25-0.24*2)+(51.16-0.24*2)*(8.91-0.24*2)
        =30.92*0.87+(48.6-0.24*2)*(15.5-0.24*2)*2+(6.28-0.24*2)*(2.25-0.24*2)+(51.16-0.24*2)*(8.91-0.24*2)
        =30.92*0.87+48.12*(15.5-0.24*2)*2+(6.28-0.24*2)*(2.25-0.24*2)+(51.16-0.24*2)*(8.91-0.24*2)
        =30.92*0.87+48.12*15.02*2+(6.28-0.24*2)*(2.25-0.24*2)+(51.16-0.24*2)*(8.91-0.24*2)
        =30.92*0.87+48.12*15.02*2+5.8*(2.25-0.24*2)+(51.16-0.24*2)*(8.91-0.24*2)
        =30.92*0.87+48.12*15.02*2+5.8*1.77+(51.16-0.24*2)*(8.91-0.24*2)
        =30.92*0.87+48.12*15.02*2+5.8*1.77+50.68*(8.91-0.24*2)
        =30.92*0.87+48.12*15.02*2+5.8*1.77+50.68*8.43
        =26.9004+48.12*15.02*2+5.8*1.77+50.68*8.43
        =26.9004+722.7624*2+5.8*1.77+50.68*8.43
        =26.9004+1445.5248+5.8*1.77+50.68*8.43
        =26.9004+1445.5248+10.266+50.68*8.43
        =26.9004+1445.5248+10.266+427.2324
        =1472.4252+10.266+427.2324
        =1482.6912+427.2324
        =1909.9236
    答案:(31.4-0.24*2)*(1.35-0.24*2)+(48.6-0.24*2)*(15.5-0.24*2)*2+(6.28-0.24*2)*(2.25-0.24*2)+(51.16-0.24*2)*(8.91-0.24*2)=1909.9236

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