1²=1=6/6=1*2*3/6 1²+2²=5=30/6=2*3*5/6 1²+2²+3²=14=84/6=3*4*9
2014-12-27
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1、(1/6+1/36-1/4+1/12)*(-48)
=-8 -3/4 +12 -4
=-3/4
2、-1-[1-(2*0.5*1/3)]*[2-(-3)²]
=-1-(1-1/3)*(2-9)
=-1-2/3 *7
=-1-14/3
=-17/3
3、-2*7-(-3)*6+5
=-14+18+5
=9
4、-1-[3-(-3)²]/1/6
=-1-[3-9]X6
=-1-(-6)X6
=-1+36
=35
5、(-9/4)+1/4-3
=-8/4-3
=-2-3
=-5
6、4.7-10+(-7)-4
=4.7-24
=-19.3
=-8 -3/4 +12 -4
=-3/4
2、-1-[1-(2*0.5*1/3)]*[2-(-3)²]
=-1-(1-1/3)*(2-9)
=-1-2/3 *7
=-1-14/3
=-17/3
3、-2*7-(-3)*6+5
=-14+18+5
=9
4、-1-[3-(-3)²]/1/6
=-1-[3-9]X6
=-1-(-6)X6
=-1+36
=35
5、(-9/4)+1/4-3
=-8/4-3
=-2-3
=-5
6、4.7-10+(-7)-4
=4.7-24
=-19.3
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