Номер 7
1)(65000+85000)-48000=150000-48000=102000
2)500000-(609000-452000)=500000-157000=343000
3)175000+(900000-465000)=175000+435000=610000
4)850000-(360000+185000)=850000-545000=305000
Номер 8
а) (36-27):3=3
б) 5*4+7*5=55
в) (60-37)-7*2=9
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Номер 7
1)(65000+85000)-48000=150000-48000=102000
2)500000-(609000-452000)=500000-157000=343000
3)175000+(900000-465000)=175000+435000=610000
4)850000-(360000+185000)=850000-545000=305000
Номер 8
а) (36-27):3=3
б) 5*4+7*5=55
в) (60-37)-7*2=9