Mrs. B: Who can give me a number sentence with 31 as the answer? (Sees a hand frantically waving in the air.) Yes, Matteo.

Matteo: Okay. 10,054 minus 10,023 equals 31.

Wyatt: (Disbelieving) Um, you may wanna check that.

Mrs. B: Here we go... (whips out the super grande calculator, enters numbers for the students to see) Yup, he's right.

(A massive class cheer erupts)

Ava: Oh, yeah. That's how we roll!