Writing a Number in Standard Form, Arithmetic Properties, Pre-Algebra

Viewing this Khan Academy video helps with grasping the concept of place value. Learners write the word six hundred forty-five million, five hundred eight-four thousand, four hundred sixty-two in standard form, using multiplication as a way to see that six hundred forty-five million is the same as 645 x 1,000,000. This video is best when viewed alongside Place Value videos 1 and 3.