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276×543-267÷276+543×275

题目详情
276×543-267÷276+543×275
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答案和解析
276×543-267÷276+543×275
=(275+1)×543-1+543×275
=275×543+543-1+543×275
=543×(275+275)+542
=543×550+542
=543×(500+50)+542
=543×500+543×50+542
=271500+27150+542
=299192