Найди значения выраж удобным способом (115+85)*9 (500+45)/5= (640+60)*7 (184+116)*3 (670+30)*6(720+80)/8
(115+85)*9=200*9=1800 (500+45)/5=500/5+45/5=100+9=109 (640+60)*7=700*7=4900 (184+116)*3=300*3=900 (670+30)*6=700*6=4200 (720+80)/8=800/8=100