Final answer:
To find the numbers that are 10,000 less and greater than 30,246, subtract 10,000 to get 20,246 and add 10,000 to get 40,246, respectively.
Step-by-step explanation:
A number that is 10,000 less than 30,246 is found by subtracting 10,000 from 30,246.
Therefore, the number would be 30,246 - 10,000 = 20,246. Similarly, a number that is 10,000 greater than 30,246 is found by adding 10,000 to 30,246, resulting in 30,246 + 10,000 = 40,246.
These calculations demonstrate a fundamental concept in mathematics known as integer powers, where subtracting or adding an integer power of 10, in this case, 10³ or 10,000, adjusts the order of magnitude of a number.