What is the least possible number you can write with a 1 in the thousands place

1000

love the "writhing in math" part.

My granddaughter writhes while doing her math, too!! LOL!

To determine the least possible number you can write with a 1 in the thousands place, you need to consider the values of the other digits in the number.

Since the thousands place can only be filled with a 1, let's consider the remaining digits. The hundreds, tens, and ones places can be filled with any digit from 0 to 9 (including 0 and 9).

To minimize the number, we want to use the smallest digits for the hundreds, tens, and ones places: 0 for each of them.

Therefore, the least possible number you can write with a 1 in the thousands place is 1000.