Solve, using properties/ methods that simplify the calculations:
`124xx15`

Answer

To solve the multiplication of 124 and 15 using properties that simplify calculations, we can break down the numbers into simpler components. Here’s a step-by-step solution:

### Step-by-Step Solution:

1. **Break Down the Numbers**:
- We can express 124 as \(100 + 24\).
- We can express 15 as \(10 + 5\).

2. **Use the Distributive Property**:
- Now, we will use the distributive property to multiply:
\[ 124 \times 15 = (100 + 24) \times (10 + 5) \]

3. **Distribute Each Part**:
- We will multiply each part:
\[ = 100 \times 10 + 100 \times 5 + 24 \times 10 + 24 \times 5 \]

4. **Calculate Each Multiplication**:
- Calculate \(100 \times 10 = 1000\)
- Calculate \(100 \times 5 = 500\)
- Calculate \(24 \times 10 = 240\)
- Calculate \(24 \times 5 = 120\)

5. **Add All the Products Together**:
- Now, we add all the results:
\[ 1000 + 500 + 240 + 120 \]

6. **Perform the Addition**:
- First, add \(1000 + 500 = 1500\)
- Next, add \(240 + 120 = 360\)
- Finally, add \(1500 + 360 = 1860\)

### Final Answer:
Thus, \(124 \times 15 = 1860\).

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