Unit 7 - Lesson 6 - Grade 2: Illustrative Mathematics - Formative Library | Library

Instructions

Grade 2 Unit 7
Lesson 6: Use a Ten to Add Within 1,000
CC BY 2021 Illustrative Mathematics®

Number Talk: Numbers that Make 10 (Warm Up)

Find the value of each expression mentally.

1

28 + 2

1

28 + 12

1

67 + 3

1

67 + 23

Add Two-digit and Three-digit Numbers

Find the value of each sum.

1

Set 1
+ 15 =_______ 
+ 23 =_______ 
+ 31 =_______ 

1

Set 2
+ 26 =_______ 
+ 37 =_______ 
+ 42 =_______ 

1

Card Sort: Perfect Ten

Match each three-digit number to a two-digit number. When you add your numbers together they should make a ten with no extra ones.

1

Pick 1 pair of numbers and find the value of their sum. Show your thinking.

1

Unit 7 - Lesson 6 - Grade 2: Illustrative Mathematics

Unit 7 - Lesson 6 - Grade 2: Illustrative Mathematics

Number Talk: Numbers that Make 10 (Warm Up)

28 + 2

28 + 12

67 + 3

67 + 23

Add Two-digit and Three-digit Numbers

Card Sort: Perfect Ten

Pick 1 pair of numbers and find the value of their sum. Show your thinking.

Find the value of 157 + 33.

Show your thinking. Use base-ten blocks if it helps.

Number Talk: Numbers that Make 10 (Warm Up)

28 + 2

28 + 12

67 + 3

67 + 23

Add Two-digit and Three-digit Numbers

What patterns did you notice?

Card Sort: Perfect Ten

Pick 1 pair of numbers and find the value of their sum. Show your thinking.

Find the value of 157 + 33.

Show your thinking. Use base-ten blocks if it helps.

What patterns did you notice?

Unit 7 - Lesson 6 - Grade 2: Illustrative Mathematics

Unit 7 - Lesson 6 - Grade 2: Illustrative Mathematics

Number Talk: Numbers that Make 10 (Warm Up)

28 + 2

28 + 12

67 + 3

67 + 23

Add Two-digit and Three-digit Numbers

Card Sort: Perfect Ten

Pick 1 pair of numbers and find the value of their sum. Show your thinking.

Find the value of 157 + 33.Show your thinking. Use base-ten blocks if it helps.

Number Talk: Numbers that Make 10 (Warm Up)

28 + 2

28 + 12

67 + 3

67 + 23

Add Two-digit and Three-digit Numbers

What patterns did you notice?

Card Sort: Perfect Ten

Pick 1 pair of numbers and find the value of their sum. Show your thinking.

Find the value of 157 + 33.Show your thinking. Use base-ten blocks if it helps.

What patterns did you notice?

Find the value of 157 + 33.

Show your thinking. Use base-ten blocks if it helps.

Find the value of 157 + 33.

Show your thinking. Use base-ten blocks if it helps.