Rounding Numbers | Rounding Decimals | MathHelp.com - Free Educational videos for Students in K-12 | Lumos Learning

Rounding Numbers | Rounding Decimals | MathHelp.com - Free Educational videos for Students in k-12


Rounding Numbers | Rounding Decimals | MathHelp.com - By MathHelp.com



Transcript
00:0-1 To round 0.8005 to the underlying place value position .
00:06 First find the digit in the rounding place which in
00:09 this case is the zero in the thousands place .
00:13 Next look at the digit to the right of the
00:16 rounding place which is five . Remember that ? The
00:19 rules of rounding tell us that if the digit to
00:21 the right of the rounding place is less than five
00:24 , we round down and if the digit to the
00:27 right of the rounding place is greater than or equal
00:29 to five , we round up . So in this
00:32 case since the digit to the right of the rounding
00:34 place , five is greater than or equal to five
00:38 . We round up this means that we add one
00:41 to the digit in the rounding place , so zero
00:44 becomes one and we change all digits to the right
00:47 of the rounding place to zero , So we have
00:51 0.8010 . Finally it's important to understand that when rounding
00:58 decimals we can drop any zeros to the right of
01:02 the decimal point as long as they are also to
01:04 the right of the rounding place . So 0.8010 can
01:10 be written as 0.801 , Which means that 0.8005 rounded
01:19 to the nearest 1000th , is 0.801 .
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