Xiao Ming reads a 430-page book. He reads 147 pages on the first day and 108 pages on the second day. How many pages of this book does Xiao Ming not read?
小明看一本430页的书，第一天看了147页，第二天看了108页．这本书小明还有多少页没看？
<gadget id="calculator">430 - 147 - 108</gadget>
<output>175</output>

<result>175</result>