Question

[trần thu trang]

-7264+(1543+7264)

(144-97)-144

(-145)-(18-145)

111+(-11+27)

(27+514)-(486-73)

(36+79)+(145-79-36)

10-[12-(-9-1)]

(38-29+43)-(43+38)

271-[(-43+271-(-17)]

-144-[29-(+144)-(+144)]

Answer 1

[tran quoc truong]

hoi gi ki  vay ban

Answer 2

[Nguyễn Thị Thương Hoài]

1; - 7264 + (1543 + 7264)

= - 7264 + 1543 + 7264

= (-7264 + 7264) + 1543

= 0 + 1543

= 1543

2; (144 - 97) - 144

= 144 - 97 - 144

= (144 - 144) - 97

= 0 - 97

= - 97