Dividing 2 digit by 1 digit numbers Literature Link: The Greatest Guessing Game: A Book About Dividing by Robert Froman Dividing 2 digit by 1 digit numbers Lesson 10-4 CCSS 4.NBT.6

MATH Essential Questions What strategies can be used to divide? MATH Essential Questions

MATH Essential Questions What are different meanings of division? MATH Essential Questions

MATH Essential Questions How can mental math and estimation be used to divide? MATH Essential Questions

MATH Essential Questions How can you use subtraction to divide? MATH Essential Questions

Warm Up Solve. 12 X 7 8 X 8 14 X 3 16 X 9 17 X 4

Think and Write Define the words DIVIDEND, DIVISOR, and QUOTIENT. Explain what each part plays in the process of division.

Today’s Lesson In this lesson, you will keep track of your division using a common record keeping method. Let’s look at the Envision Video for this lesson and take the quiz.

Process of division 42 ÷ 5 How many tens can go in each group? Are there any tens remaining? Subtract. How many items are left? Bring down the number in the ones place. How many items can you put into each group? Are there any items remaining?

Practice! 45 ÷ 3 57 ÷ 4 63 ÷ 8 72 ÷ 5 83 ÷ 6 38 ÷ 4

Problem 1 Gavin is building Lego towers using 98 blocks. He wants to use an equal amount of blocks for each tower. If Gavin makes 4 towers, how many blocks will he use for each? How many blocks will be left over?

Problem 2 Shauna makes 84 croissants for her brunch. She divides the croissants equally on 3 trays. How many croissants will she put onto each tray? How many croissants will be left over

Problem 3 Farmer Larry has 78 blueberry bushes to plant for next season. He wants to plant them in 4 fields, with an equal number of bushes in each field. How many blueberry bushes should Farmer Larry plant in each field? How many bushes will be left over when he is done?

Problem 4 My dog Ace decides to bury 64 dog bones in 6 different holes. If Ace buried an equal number of bones in each hole, how many bones did he put in each hole? How many bones were left over?

Lesson Wrap Up In this lesson, you learned how to use division and subtraction in an algorithm to divide. Reflection in Notebook: Prove there is only one possible answer to the problems solved today. Center Activity – Clip and Cover (10-4). Homework (10-4 Practice) for one “Paw Signature” and (10-4 Reteaching & Practice) if you want two “Paw Signatures.” Website for Practice: Website for Practice: http://www.math-play.com/dividing-by-one-digit- numbers.html