Learn on PengienVision, Mathematics, Grade 4Chapter 3: Use Strategies and Properties to Multiply by 1-Digit Numbers

Lesson 1: Multiply by Multiples of 10, 100, and 1,000

Property.

Section 1

Strategy 1: Use Unit Form

Property

To multiply by a multiple of 10, 100, or 1,000, you can express the multiple in unit form. For example, think of $40$ as $4$ tens, $400$ as $4$ hundreds, and $4,000$ as $4$ thousands.

Examples

Section 2

Strategy 2: Applying the Associative Property

Property

The Associative Property of Multiplication states that you can change the grouping of factors without changing the product.

(a \times b) \times c = a \times (b \times c)

Examples

Lesson overview

Expand to review the lesson summary and core properties.

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Section 1

Strategy 1: Use Unit Form

Property

To multiply by a multiple of 10, 100, or 1,000, you can express the multiple in unit form. For example, think of $40$ as $4$ tens, $400$ as $4$ hundreds, and $4,000$ as $4$ thousands.

Examples

Section 2

Strategy 2: Applying the Associative Property

Property

The Associative Property of Multiplication states that you can change the grouping of factors without changing the product.

(a \times b) \times c = a \times (b \times c)