Is it essential in mathematics to have a good understanding of Place Value.
Every number MEANS something. Every digit inside a number also has meaning. Here is an explanation from Math Is Fun:
Remember, “digit” is another word for “finger” (and “toe”). Most people have 10 fingers and 10 toes. When our number system was developed, it was developed, in part, using the fingers on our hands; thus, the reason we rely so heavily on 1’s and 10’s.
This is the video we watched in class to learn more about numbers and place value. You can watch the entire video if you like, but I think the parts that relate most to what we are doing are the first 3 minutes and the last 3 minutes.
Here is a Place Value Chart from Mathatube that you might find helpful: