# Multiply 4 Digits by 1 Digit

Videos to help Grade 4 students learn how to extend the use of place value disks to represent three- and four-digit by one-digit multiplication.

Common Core Standards: 4.NBT.5, 4.OA.1, 4.OA.2, 4.NBT.1

New York State Common Core Math Module 3, Grade 4, Lesson 8
NYS Math Module 3 Grade 4 Lesson 8 Concept Development
Problem 1: Represent 2 × 324 with disks, writing a matching equation, and recording the partial products vertically.
Problem 2: Model and solve 4 × 605 modeling the repeated addition on the place value chart.

Problem 3: Solve 3 × 851 using a partial products drawing on the place value chart.

NYS Math Module 3 Grade 4 Lesson 8 Homework
1. Represent the following expressions with disks, regrouping as necessary, writing a matching expression, and recording the partial products vertically as shown below.
b. 3 x 424
c. 4 x 1,424
2. Represent the following expressions with disks, using either method shown in the class, regrouping as necessary. To the right, record the partial products vertically.
b. 5 × 642

1. Represent the following expressions with disks, regrouping as necessary, writing a matching expression, and recording the partial products vertically as shown below.
a. 2 x 424
2. Represent the following expressions with disks, using either method shown in the class, regrouping as necessary. To the right, record the partial products vertically.
a. 2 × 617