6.512459 S in ce t h e f i f t h pl a ce ( h u n d re d t h o u s an d t h s ) i s 5 or m ore ( i t ′ s 5 ) , t h e f o u r t h pl a ce ( t e n t h o u s an d t h s ) i s in cre a se d b y 1. A n s w er : 6.512459 ≈ 6.5125
6.512459 = 6.51246 = 6.5125 A n s w er
To round 6.512459 to the nearest ten-thousandth, identify the fourth digit after the decimal point (5) and look at the next digit (4). Since 4 is less than 5, keep the 5 the same, resulting in 6.5125.
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