31*5+32*5+33*5+34*5的简便运算
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![31*5+32*5+33*5+34*5的简便运算](/uploads/image/z/106797-21-7.jpg?t=31%2A5%2B32%2A5%2B33%2A5%2B34%2A5%E7%9A%84%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97)
31*5+32*5+33*5+34*5的简便运算
31*5+32*5+33*5+34*5的简便运算
31*5+32*5+33*5+34*5的简便运算
31*5+32*5+33*5+34*5
=(31+32+33+34)*5
=[(31+34)+(32+33)]*5
=(65+65)*5
=130*5
=650
31*5+32*5+33*5+34*5
=(31+32+33+34)*5
=[(31+34)+(32+33)]*5
=(65+65)*5
=130*5
=650对不,我可小了,才四年级哦。
31*5+32*5+33*5+34*5
=5*(31+32+33+34)
=5*(31+34)*2
=10*65
=650