[eli5] Trying to teach to an autistic child why 4 – (-2) is 4 +2.

Question

Title. I know it goes like that, but as an non mathematician can’t explain it to him.

In: 0

Answer 1

Let them know that a double negative is a positive. And as a little note, with the two -‘s next to each other, if you combine them they make a +. Idk why, but that’s how my autistic brain always thought of it.