Hahaha, II love that you're kinda faking them out even if you're right or not lol. I used to work as a cashier, and I would always guess the weight of the vegetables/fruits before putting them on the scale/scanner thing because i love estimating that stuff too. I did it out loud once and got it almost exact and a couple customers jeard and wete impressed. So I tried a few times and the customers in line and I made a game of it and cheered or "awww"ed when I got it wrong. So fun.
I also like trying to guess the amount of something i need for recipes. Like, a recipe calls for a cup of onions, I look at the whole onions in store and based on size I imagine what it would look like diced in a measuring cup, I usually get close and its so satisfying
On food stamp applications, if you say that you live with other people but that you don't share resources, then they don't include the other people's income. I wouldn't be surprised if that has changed somehow though? Are you a minor?