The Learning Line Workbook. Subtraction Facts, Grades 1-2

The Learning Line Evan-Moor workbook series provides practice for specific early learning skills. The Learning Line: Subtraction Facts 2-Digit Numbers covers subtraction facts through 18, checking subtraction by adding, proofing for errors, and solving word problems. 32 full-color pages with answer key (reduced-size student pages with correct answers overlaid). Non-reproducible; consumable workbook. Grades 1-2.