# Partial Products to Standard Algorithm

Videos and solutions to help Grade 4 students learn how to transit from four partial products to the standard algorithm for two-digit by two-digit multiplication.

Common Core Standards: 4.NBT.5,
4.OA.3,
4.MD.3

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Lessons for Grade 4
Common Core For Grade 4
## New York State Common Core Math Module 3, Grade 4, Lesson 37

### NYS Math Module 3 Grade 4 Lesson 37 Concept Development

Problem 1

Solve 26 × 35 using four partial products and two partial products.

### NYS Math Module 3 Grade 4 Lesson 37 Problem Set

1. Solve 14 × 12 using 4 partial products and 2 partial products. Remember to think in terms of units as you
solve. Write an expression to find the area of each smaller rectangle in the area model.

2. Solve 32 × 43 using 4 partial products and 2 partial products. Match each partial product to its area on
the models. Remember to think in terms of units as you solve.

### NYS Math Module 3 Grade 4 Lesson 37 Homework

1. Solve 26 × 34 using 4 partial products and 2 partial products. Remember to think in terms of units as you
solve. Write an expression to find the area of each smaller rectangle in the area model.

3. Solve 52 × 26 using 2 partial products and an area model. Match each partial product to its area on the
model.

4. Solve the following using 2 partial products. Visualize the area model to help you.