1ST GRADE USE ADDITION TO SUBTARCT FLIP BOOK PROJECT iREADY ® Math Unit 1 Lesson 4 FUN ACTIVITY CRAFT This Flip Book Project is a great companion for iReady® Math.This project is a great addition to any Math Curriculum for First Grade. It offers your students extensive practice with practicing: o Understand the relationship between addition and subtraction. o When efficient, use a counting-on strategy to solve a subtraction problem. o Identify, write, and use related addition and subtraction e