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Because lots of maths people got together and then decided that 5 should round up! :P
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∙ 13y ago
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How do you round up or down when the last digit of significant digit is 5?
When the last digit of a significant digit is 5, you always round up.
How do you round integers?
If the previous digit is 5 or more then round up but if the previous digit is less than 5 then round down.
What are the rules for rounding to the nearest hundred?
Look at the tens digit. If it is 5 or more, round up. If it is 4 or less, round down. Examples: 83 - tens digit is more than five, round up to 100 447 - tens digit is 4 or less, round down to 400 1053 - tens digit is 5 or more, round up to 1100 650 - tens digit is 5 or more, round up to 700 649.999 - tens digit is 4 or less, round down to 600
How do you round 5555 to the nearest hundred?
To round 5555 to the nearest hundred, look at the tens digit (5 in this case). If the tens digit is 5 or greater, round up to the next hundred. If the tens digit is 4 or less, round down to the previous hundred. In this case, the tens digit is 5, so you would round up to 5600.
How do you round off 365,1534 to 1 decimal place?
To round a number look at the next digit in the right place, if the digit is less than 5, round down and if the digit is 5 or more than 5, round up.
How do you round to the nearest ten?
If the end digit is 1, 2, 3 or 4 you round down. If the end digit is 5, 6, 7, 8 or 9 then you round up. If the end digit is 0 it is already rounded.
How do you round 28.26 to the nearest tenth?
28.26 is going to be 28.3 If a digit is > or = to 5 you round up, < 5 you round down.
What is 243 rounded to the nearest ten?
240
What is 4.8 rounded to the nearest integer?
To round to the nearest integer, look at the first digit after the decimal point (the tenths digit): if it is less than 5 round down otherwise round up. The tenths digit of 4.8 is 8, so round up thus 4.8 → 5 when rounded to the nearest integer.
When should a digit be rounded up and when should it be rounded down?
When the digit immediately to the right of it is 0-4 round down. If it is 5-9 round up.
How do you round the last digit of a number?
If the last digit is a 5-9 you round up. Ex: 585 go up to 590. If the last digit is 1-4 you round down ex: 584 go down to 580
How can I understand how to round with decimals?
There are certain rules to follow when rounding a decimal number. Put simply, if the last digit is less than 5, round the previous digit down. However, if it's 5 or more than you should round the previous digit up. So, if the number you are about to round is followed by 5, 6, 7, 8, 9 round the number up.
