Topic A: Mental strategies for multi-digit whole number multiplication

Topic A includes lessons 1-2. "Multiply multi-digit whole numbers and multiples of 10 using place value patterns and the distributive and associative properties. Estimate multi-digit products by rounding factors to a basic fact and using place value patterns." Eureka Math/EngageNY (c) 2015 GreatMinds.org(Currently, we do not have content for Lesson 2.)