36*7.2+7.4*72+110*2.8(j简便运算)
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36*7.2+7.4*72+110*2.8(j简便运算)
![36*7.2+7.4*72+110*2.8(j简便运算)](/uploads/image/z/8322958-46-8.jpg?t=36%2A7.2%2B7.4%2A72%2B110%2A2.8%28j%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%EF%BC%89)
36*7.2+7.4*72+110*2.8
=36*7.2+74*7.2+110*2.8
=(36+74)*7.2+110*2.8
=110*7.2+110*2.8
=110*(7.2+2.8)
=110*10
=1100
=36*7.2+74*7.2+110*2.8
=(36+74)*7.2+110*2.8
=110*7.2+110*2.8
=110*(7.2+2.8)
=110*10
=1100