(-370)*(-1/4)+0.25*24.5-(-5又1/2)*0.25

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(-370)*(-1/4)+0.25*24.5-(-5又1/2)*0.25(-370)*(-1/4)+0.25*24.5-(-5又1/2)*0.25(-370)*(-1/4)+0.25*24.5-(-

(-370)*(-1/4)+0.25*24.5-(-5又1/2)*0.25
(-370)*(-1/4)+0.25*24.5-(-5又1/2)*0.25

(-370)*(-1/4)+0.25*24.5-(-5又1/2)*0.25
原式=(-370)*(-1/4)+(1/4)(24.5)+11/2)*(1/4).
=(1/4)(370+24.5+5.5).
=(1/4)(370+30).
=(1/4)*400.
=100.