Question: Select the appropriate symbol to compare the two numbers.
$-80 ? 58$
$-79 ? -10$
$-58 ? 0$
$-8144 ? -8145$
$-8.43 ? -8.430$
$78 ? -78$
$-2.6 ? -2.06$
$-3 ? -\frac{3}{5}$
1. **State the problem:** We need to compare each pair of numbers and determine the correct comparison symbol: $<$, $>$, or $=$.
2. **Recall the rule:** For any two numbers $a$ and $b$:
- If $a$ is to the left of $b$ on the number line, then $a < b$.
- If $a$ is to the right of $b$ on the number line, then $a > b$.
- If $a$ and $b$ are the same number, then $a = b$.
3. **Compare each pair:**
- $-80$ and $58$: Since $-80$ is negative and $58$ is positive, $-80 < 58$.
- $-79$ and $-10$: Both negative, but $-79$ is less than $-10$ because it is further left on the number line, so $-79 < -10$.
- $-58$ and $0$: Negative vs zero, $-58 < 0$.
- $-8144$ and $-8145$: Both negative, $-8144$ is greater than $-8145$ because it is closer to zero, so $-8144 > -8145$.
- $-8.43$ and $-8.430$: These are equal because $-8.43 = -8.430$ (trailing zeros do not change value), so $-8.43 = -8.430$.
- $78$ and $-78$: Positive vs negative, $78 > -78$.
- $-2.6$ and $-2.06$: Both negative, $-2.6 < -2.06$ because $-2.6$ is further left.
- $-3$ and $-\frac{3}{5}$: Convert $-\frac{3}{5} = -0.6$, so $-3 < -0.6$, thus $-3 < -\frac{3}{5}$.
4. **Final answers:**
- $-80 < 58$
- $-79 < -10$
- $-58 < 0$
- $-8144 > -8145$
- $-8.43 = -8.430$
- $78 > -78$
- $-2.6 < -2.06$
- $-3 < -\frac{3}{5}$