Page 7 - Demo
P. 7


                                    Rounding numbersRounding numbers makes long numbers easier to work with. To round a two-digit number to the nearest ten, simply bring it up or down to the nearest number that ends in 0.When a number ends in a 1,2,3, or 4 bring it down. Keep the tens digit the same and turn the ones digit into a 0.When a number ends in 5,6,7,8, or 9 bring it up; add 1 to the tens digit and turn the ones digit into a 0.When rounding a larger number, the method is the same. Focusing on the place value that you have to round and then look to the right and decide. If the number is 5 or more you round the place value up and the rest is zero. If it is less than five the number goes down to the nearest place value you are rounding.583 rounded tothe nearest hundred. The 5 is what you are rounding. It is in the hundreds place. Look to the right---the 8. It is more than 5 so the number 5 in the hundreds place goes up to the next hundred. 600432 rounded to the nearest hundred. The 4 is what you are rounding. It is in the hundreds place. Look to the right%u2014the 3. It is less than 5 so the number 4 in the hundreds place stays the same and the rest are zeros. 400. **Remember don%u2019t go down and skip a whole hundred by choosing 300it is easyto think to go down but to go down to 400 is going down. 432 is in between 400 and 500.Round the following to the nearest ten:31________58______________77____________Round the following to the nearest ten:742__________54,987____________2,921____________Round the following to the nearest ten:2943759329343975793911589982
                                
   1   2   3   4   5   6   7   8   9   10   11