There are 1,000 students in Hongguang Primary School in a certain school year. The myopia rate in the first semester was 57%. Under the protection of the school’s myopia health care work, the myopia rate in the second semester was reduced to 51%. How many students have their eyesight restored?
红光小学某学年有学生1000人，第一学期近视率是57%，在学校近视保健工作的保障下，第二学期的近视率降低为51%，有多少学生的视力得到了恢复？
<gadget id="calculator">57 / 100</gadget>
<output>57/100 = around 0.57</output>

<gadget id="calculator">51 / 100</gadget>
<output>51/100 = around 0.51</output>

<gadget id="calculator">(57/100) - (51/100)</gadget>
<output>3/50 = around 0.06</output>

<gadget id="calculator">1_000 * (3/50)</gadget>
<output>60</output>

<result>60</result>