Subtract the following integers: 

$+23$ from $+7$

Evaluate the following : 

$\left(-389\right)-216$

Evaluate the following : 

$\left(-126\right)-\left(+492\right)$

Evaluate the following : 

$-576-\left(-425\right)$

Evaluate the following : 

$380-\left(-120\right)-\left(-65\right)$

Subtract the number which is successor of $-27$ from the number which is predecessor of $-39$.

What must be added to :

$-72$ to get $45$?

What must be added to :

$-37$ to get $-19$?

Kanika's house is $165 \mathrm{m}$ to my left and Richa's house is $239 \mathrm{m}$ to my right. How far is Kanika's house from Richa's house?