题目内容
【题目】用简便方法计算。
173+364+827 (40+8)×25
32×564+68×564 25×92×40
【答案】1364;1200;
56400;92000;
【解析】
173+364+827 (40+8)×25
=173+827+364 =40×25+8×25
=1000+364 =1000+200
=1364 =1200
32×564+68×564 25×92×40
=(32+68)×564 =25×40×92
=100×564 =1000×92
=56400 =92000
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