Compare and Order Numbers to at least 1,000,000 4 - Reasoning

In this reasoning task, students are challenged to determine the missing digit in a sequence of numbers that are ordered from smallest to largest, all of which are greater than or equal to 851,593 and less than or equal to 857,500. The sequence of numbers presented is 851,593, 85___,392, 857,114, and 857,500. To find the missing digit, one must compare the first and third numbers in the series, paying close attention to the digits from the highest place value to the lowest.

Upon examining the given numbers, we can deduce that the missing digit in 85___,392 must fall between the hundreds of thousands and the ten thousands place of 851,593 and 857,114, respectively. This means that the missing digit must be either 2, 3, 4, 5, or 6, as these are the only digits that would maintain the correct ascending order of the sequence. Therefore, the correct answer is option c) 2,3,4,5, or 6. We can eliminate the other options because they either fall below the sequence's starting number or exceed the third number, disrupting the ascending order required.