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

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Lessons for Grade 3

Common Core For Grade 3

New York State Common Core Math Module 1, Grade 3, 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?

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)= ______ + ______

= _____

5. Alex draws the array below to find the answer to 35 ÷ 5. Explain Alex’s strategy.Complete the equations below to solve 22 ÷ 2 =

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