# Decompose and Compose Teen Numbers

Videos to help Grade 1 students learn how to solve addition and subtraction problems decomposing and composing teen numbers as 1 ten and some ones.

Common Core Standards: 1.OA.1, 1.NBT.2a, 1.NBT.2b, 1.NBT.5

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Lesson Plans and Worksheets for Grade 1

Lesson Plans and Worksheets for all Grades

New York State Common Core Math Module 2, Grade 1, Lesson 27

Lesson 27 Exit Ticket

1. Solve the problems. Write the answers to show how many tens and ones. If there is
only one, ten cross off the “s”.
13 + 6 =
____ ten and ____ ones
Lesson 27 Exit Ticket
Read the word problem. Draw and label. Write a number sentence and statement that
matches the story. Rewrite your answer to show its tens and ones.

3. Kendrick went bowling. He knocked down 16 pins in the first two frames. If he
knocked down 9 in the first frame, how many pins did he knock down in the 2nd frame?

Lesson 27 Homework
Solve the problems. Write the answers to show how many tens and ones. If there is only one, ten cross off the “s”.
Read the word problem. Draw and label. Write a number sentence and statement that matches the story. Rewrite your answer to show its tens and ones.
9. Mike has some red cars and 8 blue cars. If Mike has 9 red cars, how many cars does he have in all?
10. Yani and Han had 14 golf balls. They lost some balls when they hit them over the fence. They had 8 golf balls left. How many balls did they hit over the fence?

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