Explanation: Expanded form is splitting numbers based on the place value, such as ones, tens, hundreds, thousands, ten thousand, and so on. Therefore, 8000+ 100+ 20+ 8 = 8,128.
<em>Its easy! all that must be done is that you break down the number like if you had a number 5091 this is how you break it down 5000 + 90 + 1. Breaking numbers down makes it easier to solve and you will be amazingg at math in no time!</em>