Answer: The hundreds position.
Explanation:
I st Step;
Place value on the numbers
23, 643- Twenty three thousand, six hundred and fourty three
2 - 2 tens thousands
3 - 3 thousands
6- 6 hundreds
4- 4 tens
3 - 3 units
also 23,987--Twenty three thousand, nine hundred and eighty seven
2 - 2 tens thousands
3 - 3 thousands
9- 9 hundreds
8- 8 tens
7- 7 units
Step 2.
Having expressed the numbers above, we can see that we can begin comparing the two numbers from the hundreds position. we can therefore conclude that 23, 987 is greater than 23, 643 , bacause in the hundreds position, 900 is greater than 600, the first two numbers, 23 are similar for both numbers.