(-49又15/16)乘-8

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(-49又15/16)乘-8
x){Ci=OvеI*%_`gC>-H@(yx:gT31057p--Lm @VpE7

(-49又15/16)乘-8
(-49又15/16)乘-8

(-49又15/16)乘-8
(-49又15/16)乘-8
=(-50+1/16)×(-8)
=400-1/2
=399.5