Final answer:
The sum of ten plus ten plus ten is 30, following the base-10 system which our numerical notation is founded upon. Each sequential place value is ten times greater than the one before it, simplifying the calculation of sums involving powers of ten.
Step-by-step explanation:
The question ten plus ten plus ten can be simply added to get 30. This concept is rooted in our base-10 or powers-of-ten notation, where each place value in our decimal system is ten times greater than the one to its right. This system likely originated because humans have ten fingers which were used for counting. In mathematical terms, the concept of adding tens or multiplying by ten becomes easier when we apply our understanding of place value and powers of ten.
For instance, in powers-of-ten notation, we can quickly calculate large numbers by counting the number of zeros in a power of 10, and then simply moving the decimal that many places to the right. So, ten plus ten plus ten is the same as saying 10 + 10 + 10, and following the universal rules of mathematics, we consistently arrive at the answer which is 30, regardless of the context or the person doing the calculation.