It looks like you're asking about addition. Here's a quick overview of addition:

What is Addition?

Addition is one of the basic arithmetic operations where two or more numbers are combined to get a sum. For example:

$3 + 4 = 7$

Here, 3 and 4 are called addends, and 7 is the sum.

Rules for Addition:

1. Commutative Property: Changing the order of numbers doesn't affect the sum: $a + b = b + a$
2. Associative Property: Grouping numbers in different ways doesn't affect the sum: $(a + b) + c = a + (b + c)$
3. Additive Identity: Adding 0 to any number doesn't change the number: $a + 0 = a$

Example:

$23 + 57 = 80$

Would you like more details or examples?

Here are some questions to consider:

1. How is addition used in solving algebraic equations?
2. What is the difference between addition and subtraction?
3. Can you explain how the commutative property works in real-life situations?
4. What are some mental math tricks for addition?
5. How does addition of fractions work?

Tip: Adding in columns (starting from the right) makes it easier to add larger numbers.