To solve the subtraction problem \(390,070 - 300,700\), follow these steps:

1. Line up the numbers by their place values:

\[
\begin{array}{r}
  390,070 \\
- 300,700 \\
\hline
\end{array}
\]

2. Subtract each digit starting from the rightmost column:

   - In the units place: \(0 - 0 = 0\)
   - In the tens place: \(7 - 0 = 7\)
   - In the hundreds place: \(0 - 7\). Since \(0\) is less than \(7\), we borrow \(1\) from the thousands place.
   - After borrowing, the thousands place becomes \(0 - 1 = 9\), and the hundreds place becomes \(10 - 7 = 3\)
   - In the thousands place: \(9 - 0 = 9\)
   - In the ten thousands place: \(9 - 0 = 9\)
   - In the hundred thousands place: \(3 - 3 = 0\)

3. Write the result:

\[
\begin{array}{r}
  390,070 \\
- 300,700 \\
\hline
  89,370 \\
\end{array}
\]

So, \(390,070 - 300,700 = 89,370\).

Would you like more details or have any questions?

Here are 5 related questions to expand your understanding:

1. What is \(500,500 - 400,400\)?
2. If you add \(89,370\) back to \(300,700\), what is the result?
3. How do you handle borrowing in subtraction with multiple zeroes?
4. What is \(390,070 + 100,000\)?
5. What is the result of \(1,000,000 - 390,070\)?

**Tip:** When subtracting large numbers, carefully line up the digits by place value to avoid mistakes, especially when borrowing.

Learn how to subtract large numbers like 390,070 and 300,700. This detailed solution covers the process of place value alignment, borrowing from higher digits, and provides a clear step-by-step breakdown. Perfect for students in Grades 4-6.

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