Final answer:
To estimate the sum of 4043, 12,250, and 5601 by rounding to the nearest thousand, 4043 rounds to 4000, 12,250 rounds to 12,000, and 5601 rounds up to 6000. The estimated sum is therefore 4000 + 12000 + 6000 = 22000.
Step-by-step explanation:
To estimate the sum of 4043, 12,250, and 5601 by rounding each number to the nearest thousand, we follow this process:
- Round 4043 to 4000 (since 43 is less than 500).
- Round 12250 to 12000 (since 250 is less than 500).
- Round 5601 to 6000 (since 601 is more than 500, we round up).
Next, we add the rounded numbers:
- 4000 + 12000 + 6000 = 22000.
Thus, the estimated sum of the numbers when rounded to the nearest thousand is 22000.