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Let's solve the differences between the given pairs of numbers from Exercise 2.3A.

### 1. \( 500 - 250 = 250 \)

### 2. \( 492,708 - 230,647 \)
\[
492,708 - 230,647 = 262,061
\]

### 3. \( 50,408 - 20,879 \)
\[
50,408 - 20,879 = 29,529
\]

### 4. \( 921,853 - 719,596 \)
\[
921,853 - 719,596 = 202,257
\]

### 5. \( 1,124,354 - 798,786 \)
\[
1,124,354 - 798,786 = 325,568
\]

### 6. \( 376,542 - 85,631 \)
\[
376,542 - 85,631 = 290,911
\]

If you need further clarification on any step or want more details about the methods used, feel free to ask!

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Here are 5 related questions you might want to explore:
1. How do you check subtraction results using addition?
2. What is the significance of borrowing in subtraction when subtracting large numbers?
3. How can you subtract mentally when the numbers are close together?
4. What are the properties of subtraction that make it unique from addition?
5. Can you solve similar problems involving decimal numbers or fractions?

**Tip:** When subtracting large numbers, arranging the digits vertically makes it easier to manage borrowing.

Find the difference of each number. Arrange vertically. Checking by casting out 9’s or any method.

Learn how to solve subtraction problems with number pairs such as 500 - 250, 492,708 - 230,647, and more. This page covers subtraction of large numbers, casting out 9's for verification, and vertical arrangement for easier calculation. Suitable for students in Grades 3-6.

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