not your grandmother's math
Max has 2 donuts and —
You have 0 donuts.
You take 1 of Max’s donuts.
How many donuts do Max and you each have?
Max has 1 donut and you have 1 donut: WRONG!
Max has 2 donuts and you have 1 black eye: CORRECT!
Max has 2 donuts and —
You have 0 donuts.
You take 1 of Max’s donuts.
How many donuts do Max and you each have?
Max has 1 donut and you have 1 donut: WRONG!
Max has 2 donuts and you have 1 black eye: CORRECT!