If they had rounded correctly to the nearest hundred they still would have run out of fuel but might have been able to glide the last 45 miles.
Maybe that’s what happened to poor Loretta Fuddy’s plane.
Well, not really. Rounding properly will give an estimation of 700. Plenty of fuel.
I remember in 2nd and 3rd grade, our teachers continually asked us, “Does your answer seem reasonable?” I am a Mechanical Engineer, and minored in math. That question has saved my bacon many times.
Common Core is crap, but this is not a good example of that. (Except they don’t know how to round...)