Which number is greater? 0 - 1 - 25 - 50?

The greatest number in this group is 0.

Remember that with positive numbers, 50 is greater than 1, but with negative numbers, - 1 is greater than - 50.

If that confuses you, think of it like this.

If you owe someone 1 dollar, you yourself have more than if you owe someone 50 dollars. You yourself have even more if you don't owe any money.