225
This is just like 71 - 46 with the 200 along for the ride. Subtraction means distance on the number line. From 46 to 50 is 4, from 50 to 70 is 20, and from 70 to 71 is 1. That difference is 71 - 46 = 4 + 20 + 1 = 25. Add the 200, and we have 225.