Use these quick links for some common options for rounding practice for different grade levels. If you don't see the button or the "Add to home screen" option, then you probably cannot install this app in your browser. On Android Chrome, click on the three dots, and then "Add to home screen". To install it, click on the "Add to home screen" button at the bottom of the page. ![]() Although rounded numbers are less precise than non-rounded numbers, they’re easier to work with and better for visualising in your mind. This free, online practice program can also be installed offline as an app in your phone or tablet, depending on your browser and operating system. Rounding off numbers is an important skill to learn for mathematical equations and real life problems. You can use this online practice for all elementary grades (grades 1-6). half floor - the nearest neighbor, equidistant towards the smaller number.On this page, you can practice rounding whole numbers to the nearest ten, nearest hundred, nearest thousand, and so on. ![]() Also, it is 48 hundredths away from 899, but 52 hundredths away from 900, so its clearly closer to 899. half ceil - the nearest neighbor, equidistant values go towards the larger number. 899.48 rounded to the nearest whole number is 899, because the digit in the tenths place is less than 5.When you want to round to the nearest cent, just use the half even mode. The same rule (for the same reason) is used in accounting. If you'd round up all the time, the average is too high. It prevents cumulative rounding errors and this is why it's often used in science (we use it as a default mode in our significant figures calculator. Rounds towards the nearest neighbor, but if equidistant, it rounds towards the even number. The above numbers become 3 and -3 respectively. When we round to a place value, we are looking for the closest number that has zeros in the digits to the right. half down - similarly to half up, it rounds to the nearest neighbor, unless it's equidistant - then it rounds towards zero (just like in the down mode).This is how rounding is usually performed. For example, 3.5 becomes 4 and -3.5 becomes -4. If equidistant, it rounds away from zero (just like in the up mode). half up (default) - rounds towards the nearest neighbor. Rounding decimals is just like rounding whole numbers, with one key difference: when rounding to a place to the left of the decimal point, change all the.This principle is what our modulo calculator is based on. ![]() Similarly, negative numbers go the opposite way than in the case of rounding down. floor - it rounds towards the smaller number. ![]() It differs from rounding up by the way it handles negative numbers.
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