Subtracting 0, and All

Do you remember **subtraction?** 🤔

**Subtraction **is taking one number away from another.

Let's learn two really easy subtraction facts.

**Subtracting 0 **from a number doesn't change the number.

Take a look:

0 - 0 = 0

1 - 0 = 1

99 - 0 = 99

Cool, now let's learn one more easy subtraction fact:

**Subtracting a number from itself **will give you 0.

1 - 1 = 0

2 - 2 = 0

13 - 13 = 0

In other words, when you take a number away from itself, nothing is left. Makes sense right?

Congratulations on learning two important subtraction facts! Now try the practice below.

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