48*99+48简便算法,
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48*99+48简便算法,
48*99+48简便算法,
48*99+48简便算法,
48*99+48
=48*(99+1)
=48*100=
=4800
48*99+48
=48*(99+1)
=48*100
=4800
48*99+48=48*(99+1)=48*100=4800
48*99+48简便算法,
48*99+48简便算法,
48*99+48简便算法,
48*99+48
=48*(99+1)
=48*100=
=4800
48*99+48
=48*(99+1)
=48*100
=4800
48*99+48=48*(99+1)=48*100=4800