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Lesson Plans and Worksheets for Kindergarten

Lesson Plans and Worksheets for all Grades

More Lessons for Kindergarten

Common Core For Kindergarten

Eureka Math/EngageNY Kindergarten, module 5, lesson 21 Common Core Worksheets

**New York State Common Core Math Kindergarten, module 5, lesson 21**

Worksheets for Kindergarten, module 5, lesson 21

Worksheets, solutions, and videos to help Kindergarten students learn how to represent teen number decompositions as 10 ones and some ones, and find a hidden part.

Topic E: Represent and Apply Compositions and Decompositions of Teen Numbers

Lesson 21 Concept Development and Problem Set

Peter saw 8 puppies at the pet store in a cozy cage. While he was watching them, 2 hid in a little box. How many puppies could Peter see then? Draw a picture and write a number bond and number sentence to match the story.

Model each number with cubes on your number bond mat. Then complete the number sentences and number bonds.

11 = 10 + _____

10 + _____ = 11

12 = 10 + _____

10 + _____ = 12

13 = 10 + _____

10 + _____ = 13

_____ + 5 = 15

15 = _____ + 5

_____ + 7 = 17

17 = _____ + 7

_____ + 8 = 18

18 = 10 + _____

What can you explain about the numbers 11, 12, 13, 14, 15, 16, 17, 18, 19? What do they have in common? How are they different?

Lesson 21 Homework

Complete the number bonds and number sentences. Draw the cubes of the missing part.

15 = _____ + 10

_____ + 8 = 18

6 + 10 = ____

1 + ____ = 11

Learning Goal

I can describe the parts in a teen number.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

Lesson Plans and Worksheets for Kindergarten

Lesson Plans and Worksheets for all Grades

More Lessons for Kindergarten

Common Core For Kindergarten

Eureka Math/EngageNY Kindergarten, module 5, lesson 21 Common Core Worksheets

Worksheets for Kindergarten, module 5, lesson 21

Worksheets, solutions, and videos to help Kindergarten students learn how to represent teen number decompositions as 10 ones and some ones, and find a hidden part.

Topic E: Represent and Apply Compositions and Decompositions of Teen Numbers

Lesson 21 Concept Development and Problem Set

Peter saw 8 puppies at the pet store in a cozy cage. While he was watching them, 2 hid in a little box. How many puppies could Peter see then? Draw a picture and write a number bond and number sentence to match the story.

Model each number with cubes on your number bond mat. Then complete the number sentences and number bonds.

11 = 10 + _____

10 + _____ = 11

12 = 10 + _____

10 + _____ = 12

13 = 10 + _____

10 + _____ = 13

_____ + 5 = 15

15 = _____ + 5

_____ + 7 = 17

17 = _____ + 7

_____ + 8 = 18

18 = 10 + _____

What can you explain about the numbers 11, 12, 13, 14, 15, 16, 17, 18, 19? What do they have in common? How are they different?

Lesson 21 Homework

Complete the number bonds and number sentences. Draw the cubes of the missing part.

15 = _____ + 10

_____ + 8 = 18

6 + 10 = ____

1 + ____ = 11

I can describe the parts in a teen number.

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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