Rounding Decimals

Teaching rounding decimals is very easy it helps us in day to day calculations as well. So let us learn how to round the decimals. A decimals rounding is nothing but using decimals and making them a whole round figure. Which makes math’s more easy and understandable. Let us use the example to understand rounding decimals. As we have already studied rounding decimals lesson in our school, for round to decimals let us Say, how to round 66.99 to the nearest tenth? So the number is 66.99 and we have to round to nearest “Tenth”. We will be doing by using four simple steps. So step 1.  Is to identify the digit to be rounded. In this case it is 66.99, and we are asked to round the nearest tenth. The tenth digit is 66.9 the very first 9 to the decimal, because it is one tenth of the whole. Step 2. Is look at the digit at the immediate right of the one to be rounded that it another 9 in this case. Step 3. Determine the digit if it is greater than 5 or less than 5. If greater than 5, we add 1 to the digit being rounded, and if it is less than 5, we leave it unchanged. The digit is greater than 9 here, and 9 is greater than 5 so we will add 1 to it at the tenth place. So 9+1 gives 10, 0 goes after the decimal and 1 gets carried over to 6 now add 66+1 is 67.09. Step 4. We replace all digits to the right one being rounded with zeros. Hence it will become 67.00 or 67 after rounding of decimals.

Example, we buy a bag full of taco chips costs $ 0.4582 per ounce. How much is this to the nearest cent? How do you Round a Decimal? Lets us solve it. Our question says a bag of taco chips is 0.4582 dollars; we need to round to the nearest cent. So a cent is 1/100 of a dollar. Step 1. This is to identify the digit to be rounded. It is the cent digit which is 5( in 0.4582). In case of 0.4572 the zero to be rounded. Here the digit to be rounded is 5. Step 2. Look at the digit to the right of it. Our immediate right of 5 digit is 8. Step 3. We look at digit 8 and determine that if it is less than 5 or greater than 5. In this case it is greater than 5,which implies that we add 1 to the original digit or the rounding digit. Which means 0.4572, as 7 is greater than 5, we ass 1 to 5 which is our original digit. As a result we get 0.4672. last step, replace all the digit to the right of the one being rounded by zeros. So, 0.4682 we replace all the digits which is after 6 with zeros. So we get 0.4600 or 0.46.