Eureka Math Grade 2 Module 8 Lesson 3 Answer Key

Engage NY Eureka Math 2nd Grade Module 8 Lesson 3 Answer Key

Eureka Math Grade 2 Module 8 Lesson 3 Core Fluency Practice Set A Answer Key

Question 1.
10 + 9 =
Answer: 19

Explanation:
Addition fluency is a method to remember the addition facts. So we can produce the answers quickly and accurately.
By adding 10 with 9 we get 19

Question 2.
10 + 1 =
Answer: 11

By adding 10 with 1 we get 11

Question 3.
11 + 2 =
Answer: 13

By adding 10 with 3 we get 13

Question 4.
13 + 6 =
Answer: 19

By adding 13 with 6 we get 19

Question 5.
15 + 5 =
Answer: 20

By adding 15 with 5 we get 20

Question 6.
14 + 3 =
Answer: 17

By adding 14 with 3 we get 17

Question 7.
13 + 5 =
Answer: 18

By adding 13 with 5 we get 18

Question 8.
12 + 4 =
Answer: 16

By adding 12 with 4 we get 16

Question 9.
16 + 2 =
Answer: 18

By adding 16 with 2 we get 18

Question 10.
18 + 1 =
Answer: 19

By adding 18 with 1 we get 19

Question 11.
11 + 7 =
Answer: 18

By adding 11 with 7 we get 18

Question 12.
13 + 4 =
Answer: 17

By adding 13 with 4 we get 17

Question 13.
14 + 5 =
Answer: 19

By adding 14 with 5 we get 19

Question 14.
9 + 4 =
Answer: 13

By adding 9 with 4 we get 13

Question 15.
9 + 2 =
Answer: 11

By adding 9 with 2 we get 11

Question 16.
9 + 9 =
Answer: 18

By adding 9 with 9 we get 18

Question 17.
6 + 9 =
Answer: 15

By adding 6 with 9 we get 15

Question 18.
8 + 9 =
Answer: 17

By adding 8 with 9 we get 17

Question 19.
7 + 8 =
Answer: 15

By adding 7 with 8 we get 15

Question 20.
8 + 8 =
Answer: 16

By adding 8 with 8 we get 16

Question 21.
3 + 9 =
Answer: 12

By adding 3 with 9 we get 12

Question 22.
4 + 8 =
Answer: 12

By adding 4 with 8 we get 12

Question 23.
5 + 9 =
Answer: 14

By adding 5 with 9 we get 14

Question 24.
8 + 8 =
Answer: 16

By adding 8 with 8 we get 16

Question 25.
7 + 5 =
Answer: 12

By adding 7 with 5 we get 12

Question 26.
5 + 8 =
Answer: 13

By adding 5 with 8 we get 13

Question 27.
8 + 3 =
Answer: 11

By adding 8 with 3 we get 11

Question 28.
6 + 8 =
Answer: 14

By adding 6 with 8 we get 14

Question 29.
4 + 6 =
Answer: 10

By adding 4 with 6 we get 10

Question 30.
7 + 6 =
Answer: 13

By adding 7 with 6 we get 13

Question 31.
7 + 4 =
Answer: 11

By adding 7 with 4 we get 11

Question 32.
7 + 9 =
Answer: 16

By adding 7 with 9 we get 16

Question 33.
7 + 7 =
Answer: 14

By adding 7 with 7 we get 14

Question 34.
8 + 6 =
Answer: 14

By adding 8 with 6 we get 14

Question 35.
6 + 9 =
Answer: 15

By adding 6 with 9 we get 15

Question 36.
8 + 5 =
Answer: 13

By adding 8 with 5 we get 13

Question 37.
4 + 7 =
Answer: 11

By adding 4 with 7 we get 11

Question 38.
3 + 9 =
Answer: 12

By adding 3 with 9 we get 12

Question 39.
8 + 6 =
Answer: 14

By adding 8 with 6 we get 14

Question 40.
9 + 4 =
Answer: 13

By adding 9 with 4 we get 13

Eureka Math Grade 2 Module 8 Lesson 3 Core Fluency Practice Set B Answer Key

Question 1.
10 + 8 =
Answer:

By adding 10 with 9 we get 19

Question 2.
4 + 10 =
Answer:

By adding 10 with 9 we get 19

Question 3.
9 + 10 =
Answer:

By adding 10 with 9 we get 19

Question 4.
11 + 5 =
Answer:

By adding 10 with 9 we get 19

Question 5.
13 + 3 =
Answer:

By adding 10 with 9 we get 19

Question 6.
12 + 4 =
Answer:

By adding 10 with 9 we get 19

Question 7.
16 + 3 =
Answer:

By adding 10 with 9 we get 19

Question 8.
15 + = 19
Answer:

By adding 10 with 9 we get 19

Question 9.
18 + = 20
Answer:

By adding 10 with 9 we get 19

Question 10.
13 + 5 =
Answer:

By adding 10 with 9 we get 19

Question 11.
____ = 4 + 16
Answer:

By adding 10 with 9 we get 19

Question 12.
____ = 6 + 12
Answer:

By adding 10 with 9 we get 19

Question 13.
____ = 14 + 6
Answer:

By adding 10 with 9 we get 19

Question 14.
9 + 3 =
Answer:

By adding 10 with 9 we get 19

Question 15.
7 + 9 =
Answer:

By adding 10 with 9 we get 19

Question 16.
____ + 4 = 11
Answer:

By adding 10 with 9 we get 19

Question 17.
____ + 6 = 13
Answer:

By adding 10 with 9 we get 19

Question 18.
____ + 5 = 12
Answer:

By adding 10 with 9 we get 19

Question 19.
____ + 8 = 14
Answer:

By adding 10 with 9 we get 19

Question 20.
____ + 9 = 15
Answer:

By adding 10 with 9 we get 19

Question 21.
5 + 8 =
Answer:

By adding 10 with 9 we get 19

Question 22.
6 + 7 =
Answer:

By adding 10 with 9 we get 19

Question 23.
____ + 4 = 12
Answer:

By adding 10 with 9 we get 19

Question 24.
____ + 7 = 13
Answer:

By adding 10 with 9 we get 19

25.
6 + ____ = 14
Answer:

By adding 10 with 9 we get 19

Question 26.
7 + _____ = 15
Answer:

By adding 10 with 9 we get 19

Question 27.
____ = 9 + 8
Answer:

By adding 10 with 9 we get 19

Question 28.
____ = 7 + 5
Answer:

By adding 10 with 9 we get 19

Question 29.
____ = 4 + 8
Answer:

By adding 10 with 9 we get 19

Question 30.
3 + 9 =
Answer:

By adding 10 with 9 we get 19

Question 31.
6 + 7 =
Answer:

By adding 10 with 9 we get 19

Question 32.
8 + _____ = 13
Answer:

By adding 10 with 9 we get 19

Question 33.
____ = 7 + 9
Answer:

By adding 10 with 9 we get 19

Question 34.
6 + 6 =
Answer:

By adding 10 with 9 we get 19

Question 35.
____ = 7 + 5
Answer:

By adding 10 with 9 we get 19

Question 36.
____ = 4 + 8
Answer:

By adding 10 with 9 we get 19

Question 37.
20 = 13 + ____
Answer:

By adding 10 with 9 we get 19

Question 38.
18 = _____ + 9
Answer:

By adding 10 with 9 we get 19

Question 39.
16 = ____ + 7
Answer:

By adding 10 with 9 we get 19

Question 40.
20 = 9 + ____
Answer:

By adding 10 with 9 we get 19

Eureka Math Grade 2 Module 8 Lesson 3 Core Fluency Practice Set C Answer Key

Question 1.
19 – 9 =
Answer:

By subtracting 19 with 9 we get 10

Question 2.
19 – 11 =
Answer:

By subtracting 19 with 9 we get 10

Question 3.
17 – 10 =
Answer:

By subtracting 19 with 9 we get 10

Question 4.
12 – 2 =
Answer:

By subtracting 19 with 9 we get 10

Question 5.
15 – 12 =
Answer:

By subtracting 19 with 9 we get 10

Question 6.
18 – 10 =
Answer:

By subtracting 19 with 9 we get 10

Question 7.
17 – 5 =
Answer:

By subtracting 19 with 9 we get 10

Question 8.
20 – 9 =
Answer:

By subtracting 19 with 9 we get 10

Question 9.
14 – 4 =
Answer:

By subtracting 19 with 9 we get 10

Question 10.
16 – 13 =
Answer:

By subtracting 19 with 9 we get 10

Question 11.
11 – 2 =
Answer:

By subtracting 19 with 9 we get 10

Question 12.
12 – 3 =
Answer:

By subtracting 19 with 9 we get 10

Question 13.
14 – 2 =
Answer:

By subtracting 19 with 9 we get 10

Question 14.
13 – 4 =
Answer:

By subtracting 19 with 9 we get 10

Question 15.
11 – 3 =
Answer:

By subtracting 19 with 9 we get 10

Question 16.
12 – 4 =
Answer:

By subtracting 19 with 9 we get 10

Question 17.
13 – 2 =
Answer:

By subtracting 19 with 9 we get 10

Question 18.
14 – 5 =
Answer:

By subtracting 19 with 9 we get 10

Question 19.
11 – 4 =
Answer:

By subtracting 19 with 9 we get 10

Question 20.
12 – 5 =
Answer:

By subtracting 19 with 9 we get 10

Question 21.
15 – 7 =
Answer:

By subtracting 19 with 9 we get 10

Question 22.
18 – 9 =
Answer:

By subtracting 19 with 9 we get 10

Question 23.
16 – 8 =
Answer:

By subtracting 19 with 9 we get 10

Question 24.
15 – 6 =
Answer:

By subtracting 19 with 9 we get 10

Question 25.
17 – 8 =
Answer:

By subtracting 19 with 9 we get 10

Question 26.
14 – 6 =
Answer:

By subtracting 19 with 9 we get 10

Question 27.
16 – 9 =
Answer:

By subtracting 19 with 9 we get 10

Question 28.
13 – 8 =
Answer:

By subtracting 19 with 9 we get 10

Question 29.
12 – 5 =
Answer:

By subtracting 19 with 9 we get 10

Question 30.
19 – 8 =
Answer:

By subtracting 19 with 9 we get 10

Question 31.
17 – 9 =
Answer:

By subtracting 19 with 9 we get 10

Question 32.
16 – 7 =
Answer:

By subtracting 19 with 9 we get 10

Question 33.
14 – 8 =
Answer:

By subtracting 19 with 9 we get 10

Question 34.
15 – 9 =
Answer:

By subtracting 19 with 9 we get 10

Question 35.
13 – 7 =
Answer:

By subtracting 19 with 9 we get 10

Question 36.
12 – 8 =
Answer:

By subtracting 19 with 9 we get 10

Question 37.
15 – 8 =
Answer:

By subtracting 19 with 9 we get 10

Question 38.
14 – 9 =
Answer:

By subtracting 19 with 9 we get 10

Question 39.
12 – 7 =
Answer:

By subtracting 19 with 9 we get 10

Question 40.
11 – 9 =
Answer:

By subtracting 19 with 9 we get 10

Eureka Math Grade 2 Module 8 Lesson 3 Core Fluency Practice Set D Answer Key

Question 1.
12 – 3 =
Answer:

By subtracting 19 with 9 we get 10

Question 2.
13 – 5 =
Answer:

By subtracting 19 with 9 we get 10

Question 3.
11 – 2 =
Answer:

By subtracting 19 with 9 we get 10

Question 4.
12 – 5 =
Answer:

By subtracting 19 with 9 we get 10

Question 5.
13 – 4 =
Answer:

By subtracting 19 with 9 we get 10

Question 6.
13 – 2 =
Answer:

By subtracting 19 with 9 we get 10

Question 7.
11 – 4 =
Answer:

By subtracting 19 with 9 we get 10

Question 8.
12 – 6 =
Answer:

By subtracting 19 with 9 we get 10

Question 9.
11 – 3 =
Answer:

By subtracting 19 with 9 we get 10

Question 10.
13 – 6 =
Answer:

By subtracting 19 with 9 we get 10

Question 11.
____ = 11 – 9
Answer:

By subtracting 19 with 9 we get 10

Question 12.
____ = 13 – 8
Answer:

By subtracting 19 with 9 we get 10

Question 13.
____ = 12 – 7
Answer:

By subtracting 19 with 9 we get 10

Question 14.
____ = 11 – 6
Answer:

By subtracting 19 with 9 we get 10

Question 15.
____ = 13 – 9
Answer:

By subtracting 19 with 9 we get 10

Question 16.
____ = 14 – 8
Answer:

By subtracting 19 with 9 we get 10

Question 17.
____ = 11 – 7
Answer:

By subtracting 19 with 9 we get 10

Question 18.
____ = 15 – 6
Answer:

By subtracting 19 with 9 we get 10

Question 19.
____ = 16 – 9
Answer:

By subtracting 19 with 9 we get 10

Question 20.
____ = 12 – 8
Answer:

By subtracting 19 with 9 we get 10

Question 21.
13 – 7 =
Answer:

By subtracting 19 with 9 we get 10

Question 22.
15 – 9 =
Answer:

By subtracting 19 with 9 we get 10

Question 23.
18 – 7 =
Answer:

By subtracting 19 with 9 we get 10

Question 24.
14 – 7 =
Answer:

By subtracting 19 with 9 we get 10

Question 25.
17 – 9 =
Answer:

By subtracting 19 with 9 we get 10

Question 26.
12 – 9 =
Answer:

By subtracting 19 with 9 we get 10

Question 27.
13 – 6 =
Answer:

By subtracting 19 with 9 we get 10

Question 28.
15 – 7 =
Answer:

By subtracting 19 with 9 we get 10

Question 29.
16 – 8 =
Answer:

By subtracting 19 with 9 we get 10

Question 30.
12 – 6 =
Answer:

By subtracting 19 with 9 we get 10

Question 31.
____ = 13 – 9
Answer:

By subtracting 19 with 9 we get 10

Question 32.
____ = 17 – 8
Answer:

By subtracting 19 with 9 we get 10

Question 33.
____ = 14 – 9
Answer:

By subtracting 19 with 9 we get 10

Question 34.
____ = 13 – 5
Answer:

By subtracting 19 with 9 we get 10

Question 35.
____ = 15 – 8
Answer:

By subtracting 19 with 9 we get 10

Question 36.
____ = 18 – 9
Answer:

By subtracting 19 with 9 we get 10

Question 37.
____ = 16 – 7
Answer:

By subtracting 19 with 9 we get 10

Question 38.
____ = 20 – 12
Answer:

By subtracting 19 with 9 we get 10

Question 39.
____ = 20 – 6
Answer:

By subtracting 19 with 9 we get 10

Question 40.
____ = 20 – 17
Answer:

By subtracting 19 with 9 we get 10

Eureka Math Grade 2 Module 8 Lesson 3 Core Fluency Practice Set E Answer Key

Question 1.
13 – 4 =
Answer:

By subtracting 19 with 9 we get 10

Question 2.
15 – 8 =
Answer:

By subtracting 19 with 9 we get 10

Question 3.
19 – 5 =
Answer:

By subtracting 19 with 9 we get 10

Question 4.
11 – 7 =
Answer:

By subtracting 19 with 9 we get 10

Question 5.
9 + 6 =
Answer:

By adding 19 with 9 we get 10

Question 6.
7 + 8 =
Answer:

By adding 19 with 9 we get 10

Question 7.
4 + 7 =
Answer:

By adding 19 with 9 we get 10

Question 8.
13 + 6 =
Answer:

By adding 19 with 9 we get 10

Question 9.
12 – 8 =
Answer:

By subtracting 12 with 8 we get 4

Question 10.
17 – 9 =
Answer:

By subtracting 12 with 8 we get 4

Question 11.
14 – 6 =
Answer:

By subtracting 12 with 8 we get 4

Question 12.
16 – 7 =
Answer:

By subtracting 12 with 8 we get 4

Question 13.
6 + 8 =
Answer:

By adding 19 with 9 we get 10

Question 14.
7 + 6 =
Answer:

By adding 19 with 9 we get 10

Question 15.
4 + 9 =
Answer:

By adding 19 with 9 we get 10

Question 16.
5 + 7 =
Answer:

By adding 19 with 9 we get 10

Question 17.
9 – 5 =
Answer:

By subtracting 12 with 8 we get 4

Question 18.
13 – 7 =
Answer:

By subtracting 12 with 8 we get 4

Question 19.
16 – 9 =
Answer:

By subtracting 12 with 8 we get 4

Question 20.
14 – 8 =
Answer:

By subtracting 12 with 8 we get 4

Question 21.
8 + 4 =
Answer:

By adding 19 with 9 we get 10

Question 22.
6 + 7 =
Answer:

By adding 19 with 9 we get 10

Question 23.
9 + 9 =
Answer:

By adding 19 with 9 we get 10

Question 24.
12 – 6 =
Answer:

By subtracting 12 with 8 we get 4

Question 25.
16 – 7 =
Answer:

By subtracting 12 with 8 we get 4

Question 26.
13 – 5 =
Answer:

By subtracting 12 with 8 we get 4

Question 27.
11 – 8 =
Answer:

By subtracting 12 with 8 we get 4

Question 28.
7 + 9 =
Answer:

By adding 19 with 9 we get 10

Question 29.
5 + 7 =
Answer:

By adding 19 with 9 we get 10

Question 30.
8 + 7 =
Answer:

By adding 19 with 9 we get 10

Question 31.
9 + 8 =
Answer:

By adding 19 with 9 we get 10

Question 32.
11 + 9 =
Answer:

By adding 19 with 9 we get 10

Question 33.
12 – 3 =
Answer:

By subtracting 12 with 8 we get 4

Question 34.
14 – 5 =
Answer:

By subtracting 12 with 8 we get 4

Question 35.
20 – 13 =
Answer:

By subtracting 12 with 8 we get 4

Question 36.
8 – 5 =
Answer:

By subtracting 12 with 8 we get 4

Question 37.
7 + 4 =
Answer:

By adding 19 with 9 we get 10

Question 38.
13 + 5 =
Answer:

By adding 19 with 9 we get 10

Question 39.
7 + 9 =
Answer:

By adding 19 with 9 we get 10

Question 40.
8 + 11 =
Answer:

By adding 19 with 9 we get 10

Eureka Math Grade 2 Module 8 Lesson 3 Problem Set Answer Key

Question 1.
Use a straightedge to draw the polygon with the given attributes in the space to the right.

a.
Draw a polygon with 3 angles.
Number of sides: ______
Name of polygon: ______
Answer:

b.
Draw a five-sided polygon.
Number of angles: ______
Name of polygon: ______
Answer:

c.
Draw a polygon with 4 angles.
Number of sides: ______
Name of polygon: ______
Answer:

d.
Draw a six-sided polygon.
Number of angles: ______
Name of polygon: ______
Answer:

e.
Compare your polygons to those of your partner. Copy one example that is very different from your own in the space to the right.
Answer:

Question 2.
Use your straightedge to draw 2 new examples of each polygon that are different from those you drew on the first page.

a. Triangle
Answer:

b. Pentagon
Answer:

c. Quadrilateral
Answer:

d. Hexagon
Answer:

Eureka Math Grade 2 Module 8 Lesson 3 Homework Answer Key

Use a straightedge to draw the polygon with the given attributes in the space to the right.

Question:
Draw a five-sided polygon.
Number of angles: ______
Name of polygon: _______
Answer:

Question 1.
Use a straightedge to draw the polygon with the given attributes in the space to the right.

a.
Draw a polygon with 4 angles.
Number of sides: ______
Name of polygon: ______
Answer:

b.
Draw a six-sided polygon.
Number of angles: ______
Name of polygon: ______
Answer:

c.
Draw a polygon with 3 angles.
Number of sides: ______
Name of polygon: ______
Answer:

d.
Draw a five-sided polygon.
Number of angles: ______
Name of polygon: ______
Answer:

Question 2.
Use your straightedge to draw 2 new examples of each polygon that are different from those you drew on the first page.

a. Quadrilateral
Answer:

b. Hexagon
Answer:

c. Pentagon
Answer:

d. Triangle
Answer: