Place Value: Writing Numbers in Standard Form, Expanded Form, Word Form & Base-10 Form Worksheet PackIn this bundle, you'll find five pages of extensive place value practice. Students practice writing various three-digit numbers in all forms: Standard form, Expanded form, Word form, and Base-10 form. Each worksheet consists of a large table. On the table, students fill in the missing forms of each number in the blank cells. For example, some cells may be missing the Standard form of a number