# Distributive Property (Decompose Units)

Examples, solutions, and videos to help Grade 3 students learn how to apply the distributive property to decompose units.

Common Core Standards:3.OA.3, 3.OA.5, 3.OA.7, 3.OA.8, 3.OA.1, 3.OA.2, 3.OA.4, 3.OA.6

### New York State Common Core Math Grade 3, Module 1, Lesson 18, Lesson 19

Lesson 18 Concept Development

Problem 1: Use number bonds to decompose numbers and apply the distributive property.

Lesson 18 Homework

1. Match.
2. 9 × 4 = ____________

(_______ 4) + (_______ 4) =

_______+ _______ = _______

9 × 4 = _______ 3. Lydia makes 10 pancakes. She tops each pancake with 4 blueberries. How many blueberries does Lydia use in all? 4. Steven solves 7 × 3 using the distributive property. Show an example of what Steven’s work might look like below. 5. There are 7 days in 1 week. How many days are there in 10 weeks?

Lesson 19 Homework

1. Label the array. Then complete the equations to make statements that are true.
c) 24 ÷ 4 = _____ d.
(20 ÷ 4) =
(4 ÷ 4) =
(24 ÷ 4) = (20 ÷ 4) + (____ ÷ 4) = ______ + ______
= _____
2. Alex draws the array below to find the answer to 35 ÷ 5. Explain Alex’s strategy.

Lesson 19 Exit Ticket Sample Solution

Complete the equations below to solve
22 ÷ 2 =

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