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

Writing Subtraction Number Sentences Question 1.
____ minus ____ is ____ .

Question 2.
____ minus ____ is ____ .

Question 3.
____ minus ____ is ____ .

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. Question 3. Question 4. Do you understand? How do you write a subtraction sentence?

Draw the missing part.
Then write a subtraction sentence

Question 5. Question 6. Algebra Use the picture. Write the missing number.

Question 7. 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    