I created this mini-unit to help students understand numbers that are close, far away from each other, and in between specific numbers. I put sets of 10 on a number line and a 120 chart. There are 10 different pages so you can use to teach, your students can then try, and also use for practice. Goes with standard 1.NBT.1 Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral. Download the preview to see if this is something you need.