{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"500 Subtraction Worksheets with 4-Digit Minuends, 1-Digit Subtrahends: Math Practice Workbook (500 Days Math Subtraction Series)","author_name":"Kapoo Stem","thumbnail_url":"https://www.ebooknetworking.net/books/B00/T67/bigB00T672TS4.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00T672TS4.html\">500 Subtraction Worksheets with 4-Digit Minuends, 1-Digit Subtrahends: Math Practice Workbook (500 Days Math Subtraction Series)</a>","width":400,"height":300}