6.13: Equations with Letters Extras Created by: CK-12 Algebra Explorations, Pre-K through Grade 7 Algebra Explorations, Grade 4 Edit Review Was this helpful? Submit Review Skip Review Cancel Read Resources Details Extras for Experts - Equations with Letters – Write and Solve Equations Solutions Write equations. Figure out the weights of the blocks. Image Attributions Description No description available here... Categories: mathematics Grades: 4 Date Created: Feb 23, 2012 Last Modified: Apr 29, 2014 You can only attach files to None which belong to you If you would like to associate files with this None, please make a copy first.