Đáp án:
1) -7264+(1543+7264)=-7264+1543+7264=1543
2) (144-97)-144=47-144=-97
3) (-145)-(18-145)=(-145)-18+145=-18
4) 111+(-11+27)=111+16=127
5) (27+514)-(486-73)=541-413=128
6) (36+79)+(145-79-36)=115+30=145
7) 10-[12-(-9-1)]=10-[12-(-10)]=10-22=-12
8) (38-29+43)-(43+38)=52-81=-29
9) 271-[(-43)+271-(-17)]=271-245=26
10) -144-[29-(+144)-(+144)]=-144-(-259)=115