Lesson 13: Zero; Terms; Review

Zero

Zero is very easy to understand. Zero plus any number is the number.

No Box
plus
Purple Box
equals
Purple Box

We start with zero, which is nothing, add one box, and now have one box.

Here is the addition chart for zero:

0 + 0 = 0

0 + 1 = 1

0 + 2 = 2

0 + 3 = 3

0 + 4 = 4

0 + 5 = 6

0 + 6 = 6

0 + 7 = 7

0 + 8 = 8

0 + 9 = 9

0 + 10 = 10

0 + 11 = 11

0 + 12 = 12

Similarly, any number added to zero is zero.

Purple Box Fuchsia Box
plus
No Box
equals
Purple Box Fuchsia Box

We start with two boxes, add zero, which is nothing, and now have two boxes.

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

1 + 0 = 1

2 + 0 = 2

3 + 0 = 3

4 + 0 = 4

5 + 0 = 6

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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