rule of round off to the nearest thousand
Answers
Answer:
To the Nearest 10,000
The rule for rounding to the nearest ten thousand is to look at the last four digits. If the last four digits are 5,000 or greater, then we round our ten thousands digit up, and if it is less than 5,000, then we keep our ten thousands digit the same. For example, 5,765 rounds up to 10,000.
Answer:
To the Nearest 1,000
Let's begin with rounding to the nearest thousand. Remember the rules for rounding a decimal number that kept on going and going? You would pick a number to stop at, like perhaps two spaces after the decimal point. Then, you look at the digit directly to the right of the last digit you are going to write down. If this number is 5 or greater, then you round your last digit up. If it's less than 5, then you keep your digit the same. For example, to round the number 1.182945 to three decimal spaces, we want to stop at the 2. But should we write 2 or 3? We look at the digit directly to the right, the 9. Is this 5 or greater? Yes, so we round our 2 to a 3. Our rounded number is 1.183.
We can apply this same rule when we round larger numbers. When we round to the thousands then, we will round up if our number is 500 or greater, and we will round down if our number is less.
Remember, we are writing only numbers that are thousands. So, we have 0, 1,000, 2,000, 3,000 and so on. For example, if our number is 639, then we round up to 1,000, and if our number is 253, then we round down to 0. This is rounding to the nearest thousand. If we are higher than a thousand, we will round our thousand digit up if our last three digits are 500 or greater and keep our thousands digit if our last three digits are less than 500. For example, 1,865 rounds up to 2,000, and 3,145 rounds down to 3,000. If our number is 10,000 or larger, we keep our first digit and then round the thousand's digit based on our rule. So, 18,765 rounds up to 19,000, and 34,344 rounds down to 34,000.