Definition. The plus sign symbol (+), indicates addition and is used when combining two values.
The result from bringing them together is called the sum.
For example, 3 is added to 2.
Write 3 + 2 = 5
In this example, 3 is the summand, 2 is the second summand, and 5 is the result sum.
In the future we will have to add quite large numbers. But combining this big numbers will eventually come down to combining small numbers.
So you have to learn how to add small numbers between 0 and 9. For example:
2 + 2 = 4
3 + 4 = 7
7 + 2 = 9
0 + 7 = 7
You can practice by writing down some simple examples in your notebook. Believe me, there's no shame in it.
2. If you find an error or inaccuracy, please describe it.
3. Positive feedback is welcome.