5*(2*7)=(5*2)*7=10*7=70
(6*8)*5=6*(8*5)=6*40=240
3*(4*5)=3*20=60
100*(3*7)=100*21=2100
(20*5)*6=20*(5*6)=20*30=600
(60*5)*4=60*(5*4)60*20=1200
(30*6)*10=180*10=1800
20*(50*7)=(20*50)*7=1000*7=7000
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5*(2*7)=(5*2)*7=10*7=70
(6*8)*5=6*(8*5)=6*40=240
3*(4*5)=3*20=60
100*(3*7)=100*21=2100
(20*5)*6=20*(5*6)=20*30=600
(60*5)*4=60*(5*4)60*20=1200
(30*6)*10=180*10=1800
20*(50*7)=(20*50)*7=1000*7=7000