The classic card game of "War" with a place value spin! Students will love playing this game and you will love all the skills that they will be using--identifying place value for given numbers and being able to quickly and efficiently compare those numbers. Mental math skills will get a good workout! For students who need support with this task, use base ten blocks and allow each student or team build their number with blocks and then compare. This is a great math center activity and is quick to assemble.