Answer:the expression that would be a reasonable estimate for 331/4 is 80.
To estimate this division, we can round 331 to the nearest multiple of 4, which is 332.
Next, we divide 332 by 4 to get 83.
Since 332 is only 1 greater than 331, we can subtract 1 from the estimate and get 82.
However, 82 is still slightly larger than 331/4. So, a more reasonable estimate would be to round down to the nearest whole number, which is 80.
This means that 331/4 is approximately equal to 80.