A numerical-value equation is like a special kind of math problem. Instead of letters and symbols that maybe you don't know yet, it uses only numbers - like 1, 2, 3, 4, 5, and so on. It's like playing with blocks or counting candies. You put the numbers in a certain order, and then you have to figure out what the solution is. The solution is like the answer to a question, like "How many candies are in the jar?" or "What is the total number of blocks you have?" Just like counting, you can use your fingers or a piece of paper to add up the numbers and figure out the answer. Numerical-value equations can be easy or hard, but they are always fun to solve!