1.4,000,000,000-140,000,000
The answer is 3,860,000,000.
To subtract 140,000,000 from 4,000,000,000, follow these steps:
Step 1: Write down the numbers vertically, aligning the corresponding place values:
```
4,000,000,000
- 140,000,000
```
Step 2: Begin subtracting from the rightmost column (ones column), and work your way to the left.
Subtract 0 from 0: 0
Subtract 0 from 0: 0
Subtract 0 from 0: 0
Subtract 1 from 0: -1 (borrow 10)
Subtract 4 from 0 (after borrowing 10): -4 (borrow 1)
Add 10 and 4: 14
Subtract 0 from 0: 0
Subtract 0 from 0: 0
Subtract 4 from 4: 0
Step 3: Write the result:
```
3,860,000,000
```
Therefore, 4,000,000,000 - 140,000,000 equals 3,860,000,000.