Ballpark Estimation | Everyday Math - How to do ballpark estimation rounding numbers

Ballpark estimate is a strategy to help you determine if you sum (addition) or difference (subtraction) is correct by giving you an idea of what your answer should be. Your estimate must be within reason, which will help you determine if your exact answer is reasonable. You should do your ballpark estimation first, and then do the actual problem. That way, you have an idea of how close you need to be in order for your answer to make sense. In this video, we look at 4-3-2-1...stay 5-6-7-8-9...go up. Those are the hand signals and reminders in this tutorial. In ballpark estimate in math the numbers use for adding and subtracting are changed to nearest 10’s and for largest numbers, their nearest 50’s and 100’s. For more information, please visit http://www.thehomeworklounge.com more free videos and live online tutoring available! We help math make sense for everyone in their own way. estimation rounding ballpark estimation using ballpark estimation how to do ballpark estimation what is ballpark estimates what is ballpark estimation why do i need ballpark estimation everyday math addition subtraction math tutoring