Question: Suppose you want to subtract: $-2 - 6$.
Re-write this subtraction as an ADDITION of signed numbers.
$-2 - 6 =$
Now actually compute $-2 - 6 =$
1. **State the problem:** We need to subtract $6$ from $-2$, which is written as $-2 - 6$.
2. **Rewrite subtraction as addition:** Subtraction of a number is the same as adding its opposite. So,
$$-2 - 6 = -2 + (-6)$$
3. **Compute the addition:** Adding two negative numbers means adding their absolute values and keeping the negative sign.
$$-2 + (-6) = -(2 + 6) = -8$$
4. **Final answer:**
$$-2 - 6 = -8$$
This means subtracting $6$ from $-2$ results in $-8$.