Subtract $\left(-340\right)$ from $500$.

Subtract.

Subtract $\left(-219\right)$ from $0$.

What is obtained on subtracting $39$ from $\left(-15\right)$?

Subtract.

$\left(-17\right)$ from $17$

Subtract.

Subtract.

$\left(-28\right)$ from $\left(-50\right)$

Multiply.

$\left(-5\right)\times 7$

$(-13)\times (-13)$