## Engage NY Eureka Math 1st Grade Module 2 Lesson 5 Answer Key

### Eureka Math Grade 1 Module 2 Lesson 5 Problem Set Answer Key

Make ten to solve. Use the number bond to show how you took the 1 out.

Question 1.
Sue has 9 tennis balls and 3 soccer balls. How many balls does she have? Sue has _____ balls. Sue has 12 balls.
Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. Sue has 9 tennis balls and 3 soccer balls. In the above image we can observe three soccer balls can be divided into two parts as one and two. ADD nine tennis balls with one soccer ball in order to make ten. ADD ten balls with two soccer balls then we got twelve balls. Sue has twelve balls.

Question 2.  Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe four can be divided into two parts as one and three. ADD nine with one in order to make ten. The sum ten is added with three then the result is thirteen.

Use number bonds to show your thinking. Write the 10+ fact.

Question 3.  Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe two can be divided into two parts as one and one. ADD nine with one in order to make ten. The sum ten is added with one then the result is eleven.

Question 4.  Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe five can be divided into two parts as one and four. ADD nine with one in order to make ten. The sum ten is added with four then the result is fourteen.

Question 5.  Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe four can be divided into two parts as one and three. ADD nine with one in order to make ten. The sum ten is added with three then the result is thirteen.

Question 6.  Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe seven can be divided into two parts as one and six. ADD nine with one in order to make ten. The sum ten is added with six then the result is sixteen.

Question 7.  Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe eight can be divided into two parts as one and seven. ADD nine with one in order to make ten. The sum ten is added with seven then the result is seventeen.

Question 8.
a.  Explanation:
An addition sentence is a mathematical expression that shows two or more values added together and their sum. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe  10 + 1 = 11 number sentence.
By adding ten with one we got eleven.
b.  Explanation:
An addition sentence is a mathematical expression that shows two or more values added together and their sum. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe  9 + 2 = 11 number sentence.
By adding nine with two we got eleven.

Question 9.
a.  Explanation:
An addition sentence is a mathematical expression that shows two or more values added together and their sum. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe  10 + 8 = 18 number sentence.
By adding ten with eight  we got eighteen.

b.  Explanation:
An addition sentence is a mathematical expression that shows two or more values added together and their sum. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe  9 + 9 = 18 number sentence.
By adding nine with nine we got eighteen.

Question 10.
a.  Explanation:
An addition sentence is a mathematical expression that shows two or more values added together and their sum. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe  10 + 7 = 17 number sentence.
By adding ten with seven we got seventeen.

b.  Explanation:
An addition sentence is a mathematical expression that shows two or more values added together and their sum. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe  9 + 8 = 17 number sentence.
By adding nine with eight we got seventeen.

Question 11.
a.  Explanation:
An addition sentence is a mathematical expression that shows two or more values added together and their sum. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe  5+ 10  = 15 number sentence.
By adding five with ten we got fifteen.

b.  Explanation:
An addition sentence is a mathematical expression that shows two or more values added together and their sum. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe  6 + 9 = 15 number sentence.
By adding six with nine we got fifteen.

Question 12.
a.  Explanation:
An addition sentence is a mathematical expression that shows two or more values added together and their sum. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe  6 + 10 = 16 number sentence.
By adding six with ten we got sixteen.

b.  Explanation:
An addition sentence is a mathematical expression that shows two or more values added together and their sum. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe  7 + 9 = 16 number sentence.
By adding seven with nine we got sixteen.

### Eureka Math Grade 1 Module 2 Lesson 5 Exit Ticket Answer Key

Complete the number sentence.
Use an efficient strategy to solve the number sentences.

Question 1.
9 + 2 = ___ 9  +  2 =  11
Explanation:
An addition sentence is a mathematical expression that shows two or more values added together and their sum. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe  9 + 2 = 11 number sentence in that two can be divided into two parts as one and one. ADD nine with one which makes ten. By adding ten with one results eleven.

Question 2.
7 + 9 = ___ Explanation:
An addition sentence is a mathematical expression that shows two or more values added together and their sum. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe  7 + 9 = 16 number sentence in that seven can be divided into two parts as six and one. ADD nine with one which makes ten. By adding ten with six results sixteen.

Question 3.
___ = 9 + 5 Explanation:
An addition sentence is a mathematical expression that shows two or more values added together and their sum. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe 14 = 9 + 5  number sentence in that five can be divided into two parts as one and four. ADD nine with one which makes ten. By adding ten with four results fourteen.

### Eureka Math Grade 1 Module 2 Lesson 5 Homework Answer Key

Solve the number sentences. Use number bonds to show your thinking. Write the 10+ fact and new number bond.

Question 1.
9 + 6 = ____ 10 + ____ = ____  Explanation:
In the above image we can observe a number sentence 9  +  6  =  15. A number bond is a simple addition of two numbers that add up to give the sum. Six can be divided into two parts as one and five. ADD nine with one in order to get ten. ADD ten with five which results fifteen. The new number bond is fifteen which can be divided into two parts as ten and five as we can observe in the above number bond.

Question 2.
9 + 8 = ____ ____ + ____ = ____ Explanation:
In the above image we can observe a number sentence 9  +  8  =  17. A number bond is a simple addition of two numbers that add up to give the sum. Eight can be divided into two parts as one and seven. ADD nine with one in order to get ten. ADD ten with seven which results seventeen. The new number bond is seventeen which can be divided into two parts as ten and seven as we can observe in the above number bond.

Question 3.
5 + 9 = ____ ____ + ____ = ____ Explanation:
In the above image we can observe a number sentence 5  +  9  =  14. A number bond is a simple addition of two numbers that add up to give the sum. Five can be divided into two parts as four and one. ADD one with nine in order to get ten. ADD four with ten which results fourteen. The new number bond is fourteen which can be divided into two parts as four and ten as we can observe in the above number bond.

Question 4.
7 + 9 = ____ ____ + ____ = ____ Explanation:
In the above image we can observe a number sentence 7  +  9  =  16. A number bond is a simple addition of two numbers that add up to give the sum. Seven can be divided into two parts as six and one. ADD one with nine in order to get ten. ADD six with ten which results sixteen. The new number bond is sixteen which can be divided into two parts as six and ten as we can observe in the above number bond.

Question 5.
Solve. Match the number sentence to the 10+ number bond.
a. 9 + 5 = ____  Explanation:
In the above image we can observe a number sentence 9  +  5  =  14. A number bond is a simple addition of two numbers that add up to give the sum. Five can be divided into two parts as one and four. ADD nine with one in order to get ten. ADD ten with four which results fourteen. The number sentence that matches the 10 + 4  = 14 number bond.
b. 9 + 6 = ____  Explanation:
In the above image we can observe a number sentence 9  +  6  =  15. A number bond is a simple addition of two numbers that add up to give the sum. Six can be divided into two parts as one and five. ADD nine with one in order to get ten. ADD ten with five which results fifteen. The number sentence that matches the 10 + 5  = 15number bond.

c. 9 + 8 = ____  Explanation:
In the above image we can observe a number sentence 9  +  8  =  14. A number bond is a simple addition of two numbers that add up to give the sum. Eight can be divided into two parts as one and seven. ADD nine with one in order to get ten. ADD ten with seven which results seventeen. The number sentence that matches the 10 + 7  = 17 number bond.

Use an efficient strategy to solve the number sentences.

Question 6.
9 + 7 = ____ Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a 9  +  7  =  16 number sentence in that seven can be divided into two parts as one and six. ADD nine with one in order to get ten. Draw a common square for nine and one which results ten. ADD ten with six then we got sixteen.

Question 7.
9 + 2 = ____ Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a 9  +  2  =  11 number sentence in that two can be divided into two parts as one and one. ADD nine with one in order to get ten. Draw a common square for nine and one which results ten. ADD ten with one then we got eleven.

Question 8.
9 + 1 = ____ Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a 9  +  1  =  10 number sentence. ADD nine with one then we got ten.

Question 9.
8 + 9 = ____ Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a  8  +  9  =  17 number sentence in that eight can be divided into two parts as seven and one. ADD one with nine in order to get ten. Draw a common square for nine and one which results ten. ADD ten with seven then we got seventeen.

Question 10.
4 + 9 = ____  