# ALEX Classroom Resource

## Grade 4 Mathematics Module 3, Topic B: Multiplication by 10, 100, and 1,000

Classroom Resource Information

Title:

Grade 4 Mathematics Module 3, Topic B: Multiplication by 10, 100, and 1,000

URL:

Content Source:

EngageNY
Type: Lesson/Unit Plan

Overview:

In Module 3, Topic B, students examine multiplication patterns when multiplying by 10, 100, and 1,000. Reasoning between arrays and written numerical work allows students to see the role of place value units in multiplication. Students also practice the language of units to prepare them for multiplication of a single-digit factor by a factor with up to four digits. Teachers also continue using the phrase “____ is ____ times as much as ____” (e.g., 120 is 3 times as much as 40). This carries forward multiplicative comparison from Topic A, in the context of area, to Topic B, in the context of both calculations and word problems.

Content Standard(s):
Tags: array, divide, multiplicative comparison, multiply, operations, place value, word problems