700+(398-700)=700+398-700=398
52+(-52-879)=52-52-879=-879
-149-(-149+3)=-149+149-3=-3
-(758-1500)-1500=-758+1500-1500=-758
-(-259+79)-259=259-79-259=-79
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700+(398-700)=700+398-700=398
52+(-52-879)=52-52-879=-879
-149-(-149+3)=-149+149-3=-3
-(758-1500)-1500=-758+1500-1500=-758
-(-259+79)-259=259-79-259=-79
Б)52+(-827)=775
В)-295
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Д)