Before we can deal with manipulating three digit numbers we have to teach kids how to move around the place value scale. This quick video shares a visual representation of place value from the ones place all the way up to 100 million. As second graders your students aren't required to know quite that much but having an idea of where these numbers come from and where they go will give them the context they need to make those place value leaps.
Place Value Rap is a free educational video by singandgroove.It helps students in grades 4 practice the following standards 1.NBT.2,4.NBT.1,.
1. 4.NBT.1 : Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right. For example, recognize that 700 .