In this video tutorial from Khan Academy, learn how to subtract 1, 10, or 100 from a three-digit number while making a connection between the standard algorithm and a concrete representation using base ten blocks.
General Information
Subject(s): Mathematics
Grade Level(s): 3
Suggested Technology:
Computers for Students, Internet Connection, Speakers/Headphones
Keywords: subtraction, khan academy, standard algorithm, three-digit numbers, base ten blocks
Instructional Component Type(s):
Tutorial
Resource Collection:
Elementary Math specific existing tutorials