Addition

Addition is the process of combining numbers to find a total or sum. When adding numbers, you are finding the total amount when you put numbers together.

For example:

• 3 + 5 = 8
• 7 + 2 = 9

When adding numbers, it's important to line up the digits correctly and carry over any extra values when necessary.

Subtraction

Subtraction is the process of taking one number away from another. When subtracting numbers, you are finding the difference between the numbers.

For example:

• 8 - 3 = 5
• 10 - 4 = 6

When subtracting numbers, it's important to regroup or borrow when necessary to ensure the correct calculation.

Study Guide

Here are some key points to remember when adding and subtracting numbers:

1. Line up the digits correctly when adding or subtracting multi-digit numbers.
2. Carry over any extra values when adding multi-digit numbers.
3. Regroup or borrow when necessary when subtracting multi-digit numbers.
4. Practice adding and subtracting with various numbers to improve your skills.

Remember, the more you practice, the better you'll get at adding and subtracting numbers!