Section 1
Applying the Distributive Property
Property
The distributive property allows you to multiply a number by a sum or difference by multiplying each part of the sum or difference separately and then adding or subtracting the products.
In this Grade 5 Eureka Math lesson from Chapter 8, students learn to convert numerical expressions into unit form as a mental strategy for multi-digit multiplication. Using the commutative property and decomposition, students practice breaking apart factors — such as rewriting 8 × 31 as 30 eights plus 1 eight — to simplify calculations mentally. The lesson builds fluency with estimating products and applying the distributive property across two- and three-digit multiplication problems.
Section 1
Applying the Distributive Property
The distributive property allows you to multiply a number by a sum or difference by multiplying each part of the sum or difference separately and then adding or subtracting the products.
Book overview
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Section 1
Applying the Distributive Property
The distributive property allows you to multiply a number by a sum or difference by multiplying each part of the sum or difference separately and then adding or subtracting the products.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter