Question

6,5 - {-1/5}

Answer 1

\(6,5-\left(-\dfrac{1}{5}\right)=\dfrac{65}{10}+\dfrac{1}{5}=\dfrac{65}{10}+\dfrac{2}{10}=\dfrac{67}{10}\)

Answer 2

giúp với

 

Answer 3

6,5 - (-1,5)

= 6,5 + 1,5

= 8

Answer 4

thấy sai sai