Автор - Яша Михайлов
а) (14+42)/7=2+6 б) 78/3==60/3+18/3n
(36+54)/9=4+6 64/4=40/4+24/4n
(72+81)/9=8+9 72/4=40/4+32/4n
(35+63)/7=5+9 90/5=50/5+40/5
в) (49+28)/7=7+4 г) 96/4=80/4+16/4n
(54+24)/6=9+4 70/5=50/5+20/5n
(56+21)/7=8+3 90/6=60/6+30/6n
(56+32)/8=7+4 96/8=80/8+16/8
д) (240+60)/6=40+10 е) 78/6=13n
(210+140)/7=30+20 84/6=14n
(280+120)/4=70+30 72/6=12n
(360+270)/9=40+30 42/3=14
ж) (490+490)/7=70+70 з) 720/6=120n
(810+270)/9=90+30 960/8=180n
(540+180)/6=90+30 900/6=150n
(560+280)/7=80+40 840/4=210