Evaluate the following :
(i) `(-526)-(-217)`
(ii) `(-239)-(+1573)`.

Answer

Let's evaluate the given expressions step by step.

### (i) Evaluate `(-526) - (-217)`

1. **Identify the expression**: We have `-526 - (-217)`.
2. **Apply the rule for subtracting a negative number**: Subtracting a negative number is the same as adding its positive counterpart. Therefore, we can rewrite the expression as:
\[ -526 + 217 \]
3. **Perform the addition**: Now we need to add `-526` and `217`. Since `-526` is negative and `217` is positive, we subtract the smaller absolute value from the larger absolute value and keep the sign of the number with the larger absolute value.
\[ 526 - 217 = 309 \]
Since `-526` has the larger absolute value, the result will be negative:
\[ -309 \]
4. **Final answer for (i)**:
\[ (-526) - (-217) = -309 \]

### (ii) Evaluate `(-239) - (+1573)`

1. **Identify the expression**: We have `-239 - (+1573)`.
2. **Apply the rule for subtracting a positive number**: Subtracting a positive number means we will be moving further into the negative. Therefore, we can rewrite the expression as:
\[ -239 - 1573 \]
3. **Perform the addition**: Now we need to add `-239` and `-1573`. Since both numbers are negative, we simply add their absolute values:
\[ 239 + 1573 = 1812 \]
The result will also be negative since both numbers are negative:
\[ -1812 \]
4. **Final answer for (ii)**:
\[ (-239) - (+1573) = -1812 \]

### Summary of Answers:
- (i) `(-526) - (-217) = -309`
- (ii) `(-239) - (+1573) = -1812`