Place Value Strips are intended to be stacked, beginning with the largest place first. They are great for showing the value of each place, or to show the expanded form of a number, when separated.
The strips can also be used to help students add and subtract using partial sums.
If you choose to use the black and white version, print each page on a different color cardstock. Just print, laminate, then cut each strip apart and give every student one strip from each colored page.
Students can use dry erase markers, and a piece or felt as an eraser to fill in and easily change out the value of a strip, without having to dig through a set of cards to find the right value.