3.NBT.2 3rd Grade Math - Add & Subtract Within 1,000 Bundle with Google Practice provides two ways for students to practice and show mastery of their ability to fluently add and subtract within 1000.This bundle provides both my original PowerPoint and the new Google Slide Set products for a low upgrade fee! It includes 50 distinct problems in two sets (159 slides in all!), with and without following answer slides. These Google and PowerPoint Slide Sets can be used on computers, or Promethean