- Determine the two consecutive multiples of 10 that bracket 51
- 51 is between 50 and 60
- 55 is the midpoint between 50 and 60
- As illustrated on the number line, 51 is less than the midpoint (55)
- Therefore, 51 rounded to the nearest ten = 50


The solution above and other related solutions were provided by the Round to the Nearest Ten with a Number Line Application.
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