Question

Tính

1/ (-6 – 2). (-6 + 2)

2/ (7. 3 – 3) : (-6)

3/ (-5 + 9) . (-4)

4/ 72 : (-6. 2 + 4)

5/ -3. 7 – 4. (-5) + 1

6/ 18 – 10 : (+2) – 7

7/ 15 : (-5).(-3) – 8

8/ (6. 8 – 10 : 5) + 3. (-7)