Question

giải chi tiết nhé

Answer 1

\(=\dfrac{31\cdot\left(7-1\right)}{31}=6\)

Answer 2

\(\dfrac{217-31}{31}=\dfrac{186}{31}=6\)

Answer 3

6

Answer 4

\(=\dfrac{31\times\left(7-1\right)}{31}=\dfrac{6}{1}=6\)

Answer 5

6