Rounding off numbers is so basic but then most students hardly remember the simple rule. So to refresh your memory, here it is.
Let's say the number is 157 and it must be rounded off to the nearest tens. I assume you remember the place values. What's the digit in the tens' place? Right, it is 5. Then we look at the number on its right. If the digit is less than 5, drop that number and replace it with zero/zeros. If the digit is 5 or more, then add 1 to the digit in the ten's place before you drop the number and replace it with zero/zeros. In this case, since the digit on the right of 5 (which is in the ten's place) is 7, let's add 1 to 5 which makes it 6 and then drop 7 and replace it with zero/zeros.
What if the number is 4,999 rounded off to the nearest hundreds. What would be the answer? The correct answer is 5000. Why? Because 9 is in the hundreds' place and on its right is the digit 9 so we add 1 to 9 (hundreds' place) which makes it 10 (meaning, we add 1 to digit 4). That's why we came up with 5000.
More of basic arithmetic pointers to come. Also, I will be giving free worksheets in the coming days so better stay tuned.
If you have questions, please feel free to leave comments. I would love to hear from you. :)
If you have questions, please feel free to leave comments. I would love to hear from you. :)
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