Practice is a key element for learning and understanding. Perfect for general practice and test preparation. This workbook consists of: -100 double digit addition and subtraction practice pages (50 pages of double-digit practice workbook pages and 50 pages of subtraction double-digit workbook pages). - 1800 double-digit addition exercises. - 1800 double-digit subtraction exercises. - Answer key for all problems in the back of the book. - Page size 8.5 x 11.
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