----简便运算----
方法一:
25X(18+4)X125
=25X(125X4+125x18)
=25X(500+125X10+125X8)
=25X(500+1250+1000)
=25X2750
=68750
方法二:
25X(18+4)X125
=(25X4+25X18)X125
=(100+25X10+25X8)x125
=(100+250+200)x125
=550x125
=68750
望采纳
简便计算
25X(18+4)X125
=25x22x125
=25x2x11x125
=50x11x125
=550x125
=68750
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