Or

Author:
Rachel Casto

I can multiply a multi-digit number by a single-digit number using partial products.

I can multiply a two-digit number by a two-digit number using partial products or the box method.

Tutorial

multiply-repeatedly adding the same number (Example: 4 x 3 = 3 + 3 + 3 + 3)

factor-numbers you can multiply together to get another number; numbers can have many factors (Example: 1, 2, 3 and 6 are factors of 6 because 1 x 6 = 6 and 2 x 3 = 6)

product-the answer to a multiplication problem (Example: FACTOR X FACTOR = PRODUCT)

*4th grade expectation-->limited to whole numbers less than or equal to 1,000,000

**Students will be expected to multiply a one, two, three, or four-digit number by a one-digit number and multiply a two-digit number by a two-digit number.**

MULTI-DIGIT BY SINGLE DIGIT--PARTIAL PRODUCTS

2 By 1 Digit Using Partial Products

(Source: LearnZillion)

3 By 1 Digit Silent 'Watch and Learn'

(Source: YouTube)

MULTI-DIGIT BY SINGLE DIGIT--AREA MODEL

2 By 1 Digit Area Model

(Source: Classroom Caboodle via YouTube)

1 By 1 Digit Area Model

(Source: LearnZillion)

TWO DIGIT BY TWO DIGIT--PARTIAL PRODUCTS

2 By 2 Digit Partial Products

(Source: Classroom Caboodle via YouTube)

2 By 2 Digit Partial Products (Box Method in second part of video)

(Source: YouTube)

Using Partial Products For Multiplication

(Source: LearnZillion)

TWO DIGIT BY TWO DIGIT--AREA MODEL

Solve 2 By 2 Multiplication Problems

(Source: LearnZillion)

Use Area Models For Multiplication

(Source: LearnZillion)

TWO DIGIT BY TWO DIGIT--BOX METHOD

Partial Products Box Method

(Source: YouTube)

2 By 2 Digit Box Method

(Source: TeacherTube via YouTube)