7. A turtle and a rabbit are in a 1000-meter race. The rabbit took a nap 200 meters from the finish line. When it woke up, it found that the turtle was 10 meters from the finish line, so it immediately chased after and eventually both reached the finish line at the same time. If the turtle crawled at a constant speed throughout the race, and the rabbit's speed before and after the nap was the same, then, during the rabbit's nap, the turtle crawled $\qquad$ meters.
$950$