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 -90+(30/1.03125^4)+(35/1.03125^4*2)+(45/1.03125^4*3)+(50/1.03125^4*4)+(55/1.03125^4*5)+(60/1.03125^4*6) 的值.
    题型：数学计算
    解:
          -90+(30/1.03125^4)+(35/1.03125^4*2)+(45/1.03125^4*3)+(50/1.03125^4*4)+(55/1.03125^4*5)+(60/1.03125^4*6)
        =-90+26.525612+(35/1.03125^4*2)+(45/1.03125^4*3)+(50/1.03125^4*4)+(55/1.03125^4*5)+(60/1.03125^4*6)
        =-90+26.525612+61.893094+(45/1.03125^4*3)+(50/1.03125^4*4)+(55/1.03125^4*5)+(60/1.03125^4*6)
        =-90+26.525612+61.893094+119.365254+(50/1.03125^4*4)+(55/1.03125^4*5)+(60/1.03125^4*6)
        =-90+26.525612+61.893094+119.365254+176.837412+(55/1.03125^4*5)+(60/1.03125^4*6)
        =-90+26.525612+61.893094+119.365254+176.837412+243.15144+(60/1.03125^4*6)
        =-90+26.525612+61.893094+119.365254+176.837412+243.15144+318.307338
        =-63.474388+61.893094+119.365254+176.837412+243.15144+318.307338
        =-1.581294+119.365254+176.837412+243.15144+318.307338
        =117.78396+176.837412+243.15144+318.307338
        =294.621372+243.15144+318.307338
        =537.772812+318.307338
        =856.08015
    答案:-90+(30/1.03125^4)+(35/1.03125^4*2)+(45/1.03125^4*3)+(50/1.03125^4*4)+(55/1.03125^4*5)+(60/1.03125^4*6)=856.08015

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