- Determine the two consecutive multiples of 1,000 that bracket 40,438
- 40,438 is between 40,000 and 41,000
- 40,500 is the midpoint between 40,000 and 41,000
- As illustrated on the number line, 40,438 is less than the midpoint (40,500)
- Therefore, 40,438 rounded to the nearest thousand = 40,000
