AI Tutor
Imagine you have 5 sweet strawberries in a bowl, and you decide to eat zero of them. How many do you still have?

Subtracting Zero

When you subtract zero, you take away nothing at all.
Because nothing leaves, your starting number does not change.
This rule works for every number! For example, 8−0=88 - 0 = 8 and 10−0=1010 - 0 = 10.
What happens if you change your mind and eat every single strawberry in the bowl?

Subtracting All

When you subtract the same number you started with, you are taking everything away.
Since all of them are gone, there is nothing left. So any number minus itself always equals zero!
Be careful not to mix up these two superhero tricks!