**Digit**

A *digit* is a single whole number (0 to 9) in a number 10 or larger.
For example, the number 432 has 3 digits. Each digit has a place value.
In the number 432, the 2 is the number of ones in the number.

The 3 is
the number of 10's in the number, and the 4 is the number of 100's in the
number. So you can add them up, like this:

**4 X 100 = ** | **400** |

**3 X 10 = ** | **30** |

**2 X 1 = ** | **2** |

| **---** |

| **432** |

Now here's a problem for you: What is the 10's digit in the
number 5678?

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