One plus one equals two because the number system that we use is based on the decimal system, which is made up of ten digits (0-9). When we add one to another one, we are essentially adding one unit of something to another unit of the same thing. For example, if we have one apple and we add another apple, we now have two apples. Similarly, on the number line, adding one to the number one moves us one unit to the right, resulting in the number two. Therefore, 1+1 always equals 2 in our decimal system, and this is a fundamental concept in mathematics.
There are various ways to explain why 1+1 equals 2. One way is to understand basic addition. The number 1 represents a single entity, and when we add another single entity (also represented by 1) to it, we end up with a total of two entities. Another perspective comes from the concept of numbers on a number line. Starting at the number 0, when we move one unit in a positive direction (represented by +1), and then move another unit in the same direction, we arrive at the number 2. Therefore, adding 1 and 1 together results in the sum of 2.
To explain why 1+1 equals 2, we can refer to the basic principles of arithmetic. The number system we use is called the decimal system, which is based on the concept of place value. In this system, each digit's position represents a different power of 10. When we add two numbers together, such as 1 and 1, we start by aligning the digits in the ones place. Adding these two digits results in a sum of 2, which we then write in the ones place of the answer. Since there are no other digits to add, the final result is 2. This mathematical concept follows the fundamental rules of addition and the structure of our number system, leading us to the conclusion that 1+1 equals 2.
