12.5x5.2+6.5x5.2+520%答案是多少?
问题描述：
12.5x5.2+6.5x5.2+520%答案是多少?
答
12.5*5.2+6.5*5.2+520% =12.5*5.2+6.5*5.2+5.2=（12.5+6.5+1）*5.2=20*5.2=104
12.5x5.2+6.5x5.2+520%答案是多少?
12.5*5.2+6.5*5.2+520% =12.5*5.2+6.5*5.2+5.2=（12.5+6.5+1）*5.2=20*5.2=104