LP+multiply+fluently


 * The “learning progression” for fluency with multiplication of multidigit whole numbers includes: **

1. Multiply by 10 and 100.

2. Estimate the result of multiplying by rounding, etc.

3. Use area models to represent multiplication and to simplify calculations.

4. Understand how the distributive property works and use it to simplify calculations.

5. Use alternative algorithms like the partial product method (based on the distributive property) and the lattice method.

6. Identify typical errors in using the standard algorithm.

Of course, being fluent with number combinations up to 10 is critical also.