What 3 numbers would you use to compare 35,712

35,694

35,981

35,102

Step-by-step explanation:

If you're using the hundreds place for comparison, it means the digits in higher places are the same, and that digits in the hundreds place are different.

This will be true for any 5-digit number of the form ...

 (3)(5)(not 7)(something)(something).

The numbers might have digits to the right of the decimal point, but those are irrelevant, as are the digits in the 10s and 1s places.

He made an error in step 2 because you are supposed to do the inverse operations on the -3 which would be +3.