- Determine the two consecutive multiples of 10 that bracket 1,391
- 1,391 is between 1,390 and 1,400
- 1,395 is the midpoint between 1,390 and 1,400
- As illustrated on the number line, 1,391 is less than the midpoint (1,395)
- Therefore, 1,391 rounded to the nearest ten = 1,390
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