1)+(84 - 208 + 25)=84-208+25=-99
2)-(45 - 69 - 21)=-45+69+21=45
3)-(284 - 49 - 244)=-284+49+244=9
№1131.
1) (119 + 141) - (-59 + 119)=119+141+59-119=200
2) (325 + 219) - (125 + 119)=325+219-125-119=300
3) (228 - 215) - (28 - 315)=228-215-28+315=300
4) -(82 + 98) - (186 - 86)=-82-98-186+86=-280