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Lesson 13: Zero; Terms; Review

Zero

Zero is very easy to understand. Any number minus zero is the number. If you have something and don't take anything away from it then you still have the something that you started with.

Given what you just learned, you now know the following equations:

0 - 0 = 0
1 - 0 = 1
2 - 0 = 2
3 - 0 = 3
4 - 0 = 4
5 - 0 = 5
6 - 0 = 6
7 - 0 = 7
8 - 0 = 8
9 - 0 = 9
10 - 0 = 10
11 - 0 = 11
12 - 0 = 12

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