## Envision Math 2nd Grade Textbook Answer Key Topic 1.3 Writing Subtraction Number Sentences

**Writing Subtraction Number Sentences**

Question 1.

____ minus ____ is ____ .

Answer:

Question 2.

____ minus ____ is ____ .

Answer:

Question 3.

____ minus ____ is ____ .

Answer:

**Home Connection** Your child used cubes and wrote number sentences to model subtraction.

**Home Activity** Give your child a sheet of paper and some small objects. Together, count the objects, and then take turns covering some of them with the paper. Ask questions such as, “How many are missing?”

AF 1.3 Solve addition and subtraction problems by using data from simple charts, picture graphs, and

number sentences. Also AF 1.2.

**Guided Practice**

Draw the missing part.

Then write a subtraction sentence.

Question 1.

Question 2.

Answer:

Question 3.

Answer:

Question 4.

Answer:

Do you understand? How do you write a subtraction sentence?

Draw the missing part.

Then write a subtraction sentence

Question 5.

Answer:

Question 6.

Answer:

Algebra Use the picture. Write the missing number.

Question 7.

Answer:

**Problem Solving**

Solve the problems below.

Question 8.

Rita has a box of 12 marbles. She takes out 7 marbles. How many marbles are left in the box?

___ marbles

Answer:

Question 9.

8 friends play a game. They use 3 balls. Then 3 friends go home. Draw a picture to show the story. Which shows how many friends are still playing the game?

Answer:

Question 10.

Journal Write a story about birds in a tree. Tell how many are in the tree and how many fly away. Then find how many are still in the tree.

Answer: