Multiplication Properties | Commutative, Associative, Identity, & Zero
From Math with Mr. J
4 min4th5thMath
Summary
How to multiply multi-digit numbers using the standard algorithm, area model, or partial products. Mr. J shows the steps and where each number goes.
Viewer safety
All ages
Our rating is a quick teacher-to-teacher guide — preview before showing.
Teaching resources
Discussion questions
Multi-digit multiplication breaks the problem into place-value pieces you add back together.
- How does the area model show what multiplication is doing?
- Why do you add a placeholder zero on the second line?
- How can you estimate to check your product?
Quick work-a-long
Words to know: multiply, product, place value, partial product
- Solve 34 x 26.
- Estimate 48 x 52, then solve it.