MATH 097 Chapter 1: Rounding And Estimation
Document Summary
*this follows the basic college mathematics textbook by elayn martin-gay, but can be used for any basic math course. If the digit to the right is lower than 4, round down. If the digit to the right is 5 or higher, round up. You must look to the digit to the right, which in this case would be the tens. Following the rules of estimation, we can round to said place. When looking to the right, we find the number 7. With the rules we know, we will round up to the hundreds. While the number is fairly similar to the last, we look to the right once more. Since we are rounding to the nearest hundreds, we look to the tens and find the number 2 . Following the rules, we know that if the number is 4 or lower, we round down. Following the rules, figure out the answers to these examples.