The document contains examples of using base-ten blocks to represent and decompose numbers into hundreds, tens, and ones. It shows writing numbers in expanded form by showing the value of each place value. For instance, it represents 145 as 1 hundred, 4 tens (40), and 5 ones, for a total of 145. It also asks the reader to represent numbers like 23 and 21 using base-ten blocks and write them in expanded form.