Throughout the series, there are several instances of Bluth family members being bad at math.
George Michael: Well, this is the cash drawer. My dad’s going to come by at the end of the weekend, and the number of bananas has to match the amount of money in here.
Maeby: Oh, so it all has to even out?
George Michael: Exactly.
Maeby: Easy. Banana... Buck. Banana... Take a buck.From "Top Banana"
Maeby: Well, now that we’ve got an employee, we can go have dinner. We throw away a banana for every buck we take so no one finds out.
T-Bone: Wait a minute, I think you should do that math again.
George Michael: Why? Is it wrong?
Maeby: It’s fine. He’s an arsonist, not an embezzler.From "Top Banana"
George Michael: No. No, that’s not the answer. What? No. You stupid jerk. Why don’t you... Dumb. Dumb George Michael. Dumb. Dumb.
Michael: Whoa! Whoa! Calm down, you two. It’s just a math problem.
George Michael: Yeah. But if I fail math, there goes my chance at a good job and a happy life full of hard work, like you always say.From "Pier Pressure"
Maeby: So here’s the test that I failed.
George Michael: Oh, okay. I see the problem right away. You got all the answers wrong. You know, you even got your name wrong. It says S. Fünke.
Maeby: Yeah, well, what they want you do is put an “S” if you’re single, or an “M” if you’re married. Most of us are all single, but it’s a whole government thing.
George Michael: Yeah, okay. Well, the first thing you want to do, especially when you’re dealing with fractions...
Maeby: Yeah, so I’m gonna go, okay? So just fill in all the right answers here, and I’ll see where I went wrong. And you’re getting paid for this, right?
George Michael: There was some talk of ice cream, but not exactly on my terms. Where did you get all that? You have a job or something?
Maeby: No, but you do. Now, look, don’t feel guilty. I don’t really need tutoring anyways, okay?
Maeby: Enjoy the 200 bucks.
George Michael: There’s six twenties here.
Maeby: That’s right.
George Michael: Right.From "Altar Egos"
Lindsay: Okay, I tell you what. I’ll take you down to see Nana if you split the money with me 60-40.
Michael: Sounds like you guys are getting more than you think.From "Missing Kitty"