Expanded & Standard Form - 4th Grade Math Resources Standard & Expanded Form. -Used with place value to write out a number. -Each number has its own place. -Expanded Form writes out the number as if adding all the place values together. How To: -Know each place value for each number. -Use zeros to help you find place value. For example: ( standard) 3,678. ( expanded ) 3,000 + 600 + 70 + 8.