Learning+Progressions-Develop+fluency+and+quick+recall+of+addition+facts+and+related+subtraction+facts+and+fluency+with+multi-digit+addition+and+subtraction


 * Show the inverse relationship between addition and subtraction by using physical models, diagrams, and/or acting-out situations
 * Explain the use strategies for understanding addition facts for sums equal to at least 10, and related subtraction facts
 * Develop quick recall of addition facts to at least 10
 * Demonstrate quick recall of basic addition facts to 20 and related subtraction facts
 * Solve word problems involving joining, separating, part/whole, comparing, grouping, and partitioning, using a variety of strategies, such as direct modeling, counting up or counting back by 1s or 10s, and deriving or recalling facts