24+(...-86)=24 (...-6)+6=90 30+44-....+30=60 ...+(9-9)=15 (...-5)+5=70 40+12-...+40=80...

Question

24+(...-86)=24 (...-6)+6=90 30+44-....+30=60 ...+(9-9)=15 (...-5)+5=70 40+12-...+40=80 решить примеры

Answer 1

24+(86-86)=24 (90-6)+6=90 (30+44)-44+30=60 15+(9-9)=15 (70-5)+5=70 40+12-12+40=80