Lesson objective: Multiply multi-digit numbers using the standard algorithm.

This lesson helps to build procedural skill with multiplying multi-digit numbers. The standard algorithm is used here because supports fluency. This work develops students' understanding that the standard algorithm for multiplication is an efficient way to multiply that uses place value concepts.

Students engage in Mathematical Practice 8 (Look for and express regularity in repeated reasoning) as they solve multiplication problems using the standard algorithm.

**Key vocabulary:**

- Partial Products
- Standard Algorithm