Subtraction Minuends 11 to 18 Author:Theresa Warnick The One-Minute Math Developmental Drill series is a systematic program that enables students to master math facts with speed and accuracy. This series is effective and motivating, challenging students in regular classroom settings as well as students in special education. The one-minute timed tests introduce one fact at a time. This program allo... more »ws students of all ability levels to see their own daily improvement as they work toward the goal of mastery. included in this book are 49 reproducible test pages with an answer key, ready-to-use flash cards, reproducible blackline art for bulletin board patterns, awards, activity sheets, and more.« less