Solve using properties of whole numbers which will make the calculations simpler.
`128xx15`

Answer

To solve the problem \(128 \times 15\) using properties of whole numbers that make the calculations simpler, we can follow these steps:

### Step 1: Break down the number 128
We can express 128 as the sum of two simpler numbers:
\[ 128 = 120 + 8 \]

### Step 2: Use the distributive property
Using the distributive property of multiplication over addition, we can rewrite the multiplication:
\[ 128 \times 15 = (120 + 8) \times 15 \]
This can be expanded as:
\[ = 120 \times 15 + 8 \times 15 \]

### Step 3: Calculate each part
Now, we will calculate each multiplication separately.

1. **Calculate \(120 \times 15\)**:
- Break it down further:
\[ 120 \times 15 = 120 \times (10 + 5) = 1200 + 600 = 1800 \]

2. **Calculate \(8 \times 15\)**:
\[ 8 \times 15 = 120 \]

### Step 4: Add the results together
Now, add the two results together:
\[ 1800 + 120 = 1920 \]

### Final Answer
Thus, the final answer to \(128 \times 15\) is:
\[ \boxed{1920} \]

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