Fourth Grade Multiplication 6 - 2 Digits x 2 Digits with Regrouping - It teaches students how to multiply 2 digits times 2 digits with regrouping and how to multiply using Partial Products. The following concepts are reviewed: relationship of multiplication to addition, products, factors, arrays, and how arrays can represent multiplication problems. There is also a review of the nine multiplication facts. This is perfect for distance learning on Zoom or similar formats. The lesson is