Final answer:
To estimate the sum of 3.85 and 7.46, round each to the nearest whole number (4 and 7, respectively) and add them to get an estimated sum of 11.
Step-by-step explanation:
The student is asking to estimate the sum of 3.85 and 7.46 by rounding to the nearest number. To do this, you round each number to the nearest whole number before adding. 3.85 rounds up to 4 because the digit after the decimal is 5 or higher. Similarly, 7.46 rounds down to 7 because the digit after the decimal is less than 5. Therefore, the estimated sum is 4 + 7 = 11.