Standards

Questions to Consider

Strategies

The Rectangle Sections method helps organize the parts of a multi-digit multiplication problem. Decompose each factor and multiply to find partial products. Add the partial products to find the answer to the multiplication problem.

**Perform operations with multi-digit whole numbers and with decimals to hundredths.****5.NBT.5**Fluently multiply multi-digit whole numbers using the standard algorithm.Questions to Consider

- Is my answer reasonable?
- Can I use another strategy to check my work?
- How are the standard algorithm and rectangle sections model similar and different?

Strategies

**Rectangle Sections Model (Area Model)**The Rectangle Sections method helps organize the parts of a multi-digit multiplication problem. Decompose each factor and multiply to find partial products. Add the partial products to find the answer to the multiplication problem.

Standard AlgorithmStandard Algorithm

Students must gain fluency with the standard algorithm in fifth grade. Remember to think about why you are doing what you are doing as you complete the various steps. How did you get 1,516 as your first partial product? Why do we need the placeholder "0"?