Multiply with 7 MAFS.3.OA.3.7

Lesson Opening Solve the two problems below. Write the equation you used to solve the problem. Michael has 6 packs of markers at home. Each pack has 9 markers in it. How many markers does Michael have at home? If 24 chairs are arranged into 8 equal rows, how many chairs are in each row?

Lesson Opening Solve the two problems below. Write the equation you used to solve the problem. Michael has 6 packs of markers at home. Each pack has 9 markers in it. How many markers does Michael have at home? If 24 chairs are arranged into 8 equal rows, how many chairs are in each row? 6 packs (groups) of 9 6 x 9 = 54 Michael has 54 markers at home. 24 chairs in 8 equal rows 24 ÷ 8 = 3 8 x ____ = 24 There are 3 chairs in each row.

Whoa, that’s a lot of bananas to count! Multiplying with 7 Using the Distributive Property with facts you know is a strategy for multiplying by 7. 7 x 9 Whoa, that’s a lot of bananas to count!

Whoa, that’s a lot of bananas to count! Multiplying with 7 Using the Distributive Property with facts you know is a strategy for multiplying by 7. 7 x 9 Whoa, that’s a lot of bananas to count! I know 5 x 9, which is 45. 5 x 9

Whoa, that’s a lot of bananas to count! Multiplying with 7 Using the Distributive Property with facts you know is a strategy for multiplying by 7. 7 x 9 Whoa, that’s a lot of bananas to count! I know 5 x 9, which is 45. 5 x 9 And I know 2 x 9, which is 18. 2 x 9

Whoa, that’s a lot of bananas to count! Multiplying with 7 Using the Distributive Property with facts you know is a strategy for multiplying by 7. 7 x 9 Whoa, that’s a lot of bananas to count! I know 5 x 9, which is 45. 5 x 9 And I know 2 x 9, which is 18. (5 x 9) + (2 x 9) = 45 + 18 = 63 2 x 9

Whoa, that’s a lot of bananas to count! Multiplying with 7 Using the Distributive Property with facts you know is a strategy for multiplying by 7. 7 x 9 Whoa, that’s a lot of bananas to count! So, 7 x 9 = 63 5 x 9 (5 x 9) + (2 x 9) = 45 + 18 = 63 2 x 9

Multiplying with 7 Another strategy is to use the Commutative Property! You have a strategy for solving your 9 facts, right? Use that! 7 x 9

Multiplying with 7 You have at least one strategy for all the facts you have learned so far! 1s facts 2 facts 10 facts 5 facts 3 facts 4 facts 6 facts 9 facts 8 facts

The only fact you have left to learn is 7 x 7! Multiplying with 7 You have at least one strategy for all the facts you have learned so far! The only fact you have left to learn is 7 x 7! 1 facts 2 facts 10 facts 5 facts 3 facts 4 facts 6 facts 9 facts 8 facts

Multiplying with 7 Let’s look at our Multiplication Table…

Multiplying with 7 Find all the multiples of 7… The multiples go in an even, odd pattern. There are not a lot of obvious patterns in the multiples of 7.

Multiplying with 7 Let’s look at our 100 Chart…

Multiplying with 7 What are the patterns? Look at the multiples of 7…

Target 70 What you need: Target 70 Spinner (with a paperclip as the spinner) Target 70 Recording Sheet How to play: Players spin and record 3 products. Choose 2 products to add to get you as close to 70 as possible (without going over 70). The player closest to 70 wins the round. The first plater to win 3 rounds wins the game.

What is one strategy you used for multiplying with 7? Closing What is one strategy you used for multiplying with 7? Use the Distributive Property 7 x 7 = (5 x 7) + (3 x 7) = 49 Use the Commutative Property and use the strategy for the other factor

When you multiply any number by 7, is the product… Bonus Question When you multiply any number by 7, is the product… always odd? always even? sometimes even, sometimes odd? neither even nor odd? How do you know?

Exit Ticket Betul has 7 types of flowers in her garden. She has 8 buds of each type of flower. How many flower buds does Betul have? Model the problem. Write an equation that corresponds to it. Write another equation that corresponds to it. Write the answer to the problem in a complete sentence.