Math Park. Introduction to Three-Digit Numbers. 11/19/2021 | 14m 23s Video has Closed Captions | CC. Build, read, write, and represent three-digit numbers using base-10 blocks and symbols.

Our numbers . We use base 10. This means that every digit, reading from right to left, represents a count of exponentially increasing factors of 10 starting on the right with 10^0.

A version of this article appeared in the March 18, 2015 edition of Education Week as Let Mathematics Research Base Guide Teaching of Fractions ...