Letâs count and write numbers to 120! Join Ms. Lassiter for this lesson as we relate 0 to 20 to 100 to 120 and represent numbers to 120 as tens and ones on a place value chart. Students will need a place value chart, whiteboard and dry erase marker. If you have access to a workbook, or a printer, we also suggest using the Problem Set available using the link below the video.