Final answer:
Meg has saved 645 pennies, which lies between 600 and 700. The nearest hundred below 645 is 600 and the nearest hundred above is 700, placing 645 in the range starting at 600 and ending before 700.
Step-by-step explanation:
The question is asking to determine between which hundreds the number 645 falls. When identifying the hundreds that a particular number falls between, you look for the nearest lower and higher hundreds that encompass the number. Since 645 is greater than 600 and less than 700, we can conclude that it is between the hundreds of 600 and 700.
The closest hundred below 645 is 600, and the closest hundred above is 700. Therefore, the number 645 belongs to the range of numbers that start at 600 and end before 700.
It's important to note that in mathematics, especially when dealing with money or basic numeracy, understanding place value and the ability to determine ranges is fundamental. In this case, recognizing that 645 is more than 600 but less than 700 shows a grasp of basic number sense.