Solve using brackets to simplify the calculations:
`201xx79`

Answer

To solve the expression \( 201 \times 79 \) using brackets to simplify the calculations, we can follow these steps:

### Step-by-Step Solution:

1. **Rewrite the numbers using brackets**:
\[ 201 \times 79 = (200 + 1) \times (80 - 1) \]

2. **Apply the distributive property**:
\[ (200 + 1) \times (80 - 1) = 200 \times 80 + 200 \times (-1) + 1 \times 80 + 1 \times (-1) \]

3. **Calculate each term**:
- \( 200 \times 80 = 16000 \)
- \( 200 \times (-1) = -200 \)
- \( 1 \times 80 = 80 \)
- \( 1 \times (-1) = -1 \)

So, we can combine these results:
\[ 16000 - 200 + 80 - 1 \]

4. **Combine the terms**:
- First, calculate \( 16000 - 200 \):
\[ 16000 - 200 = 15800 \]
- Then add \( 80 \):
\[ 15800 + 80 = 15880 \]
- Finally, subtract \( 1 \):
\[ 15880 - 1 = 15879 \]

5. **Final Result**:
\[ 201 \times 79 = 15879 \]