[tex]387\times529\to \boxed{400\times500} \\ \\ 400\times500\to\boxed{200,000} \\ \\ Therefore,the\ estimated\ factors\ are\ \underline{400}\ and \ \underline{500} \\ while\ \underline{200,000}\ is\ the\ estimated\ product... \\ \\ Hope\ this\ Helps:) \\ Domini[/tex]
