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valkas [14]
3 years ago
13

How can I round decimals

Mathematics
2 answers:
Yakvenalex [24]3 years ago
7 0

Step-by-step explanation: To round a decimal, you first need to know the indicated place value position you want to round to. This means that you want to first find the digit in the rounding place which will usually be underlined.

Once you locate the digit in the rounding place, look to the left of that digit. Now, the rules of rounding tell us that if a number is less than 4, we round down but if a number is greater than or equal to 5, we round up.

I'll show an example.

<em>Round the following decimal to the indicated place value.</em>

<em>0.80</em><u><em>0</em></u><em>5</em>

<em />

<em>To round 0.80</em><u><em>0</em></u><em>5 to the indicated place value position, first find the digit in the rounding place which in this case is the 0 in the thousandths place.</em>

<em />

<em>Next, find the digit to the right of the rounding place which in this case is 5. Since 5 is greater than or equal to 5, we round up.</em>

<em />

<em>This means we add 1 to the digit in the rounding place so 0 becomes 1. So we have 0.801. Now, we change all digits to the right of the rounding place to 0 so 5 changes to 0.</em>

<em />

<em>Finally, we can drop of any zeroes to the right of our decimal as long as they're also to the right of the rounding position.</em>

<em />

<em>So we can write 0.8010 as 0.801.</em>

Image provided.

olganol [36]3 years ago
6 0

Answer:

Find the place value you want (the "rounding digit") and look at the digit just to the right of it.

If that digit is less than 5, do not change the rounding digit but drop all digits to the right of it.

If that digit is greater than or equal to five, add one to the rounding digit and drop all digits to the right of it.

Step-by-step explanation:

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