Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (2024)

Engage NY Eureka Math 2nd Grade Module 5 Lesson 18 Answer Key

Eureka Math Grade 2 Module 5 Lesson 18 Problem Set Answer Key

Question 1.
Use the arrow way and counting on to solve.
a. 300 – 247

Answer:
300 – 247 = 53.

Explanation:
In the above-given question,
given that,
use the arrow way and counting on to solve.
300 – 247.
3 hundred = 300.
2 hundred = 200.
4 tens = 40.
7 ones = 7.
200 + 40 + 7 = 247.
300 – 247 = 53.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (1)

b. 600 – 465

Answer:
600 – 465 = 135.

Explanation:
In the above-given question,
given that,
use the arrow way and counting on to solve.
600 – 465.
600 – 100 = 500.
500 – 35 = 465.
600 – 465 = 135.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (2)

Question 2.
Solve vertically, and draw a place value chart and chips. Rename in one step.
a. 507 – 359

Answer:
507 – 359 = 148.

Explanation:
In the above-given question,
given that,
solve vertically, and draw a place value chart and chips.
507 – 359.
5 hundred = 500.
7 ones = 7.
500 + 7 = 507.
3 hundred = 300.
5 tens = 50.
9 ones = 9.
300 + 50 + 9 = 359.
507 – 359 = 148.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (3)

b. 708 – 529

Answer:
708 – 529 = 179.

Explanation:
In the above-given question,
given that,
solve vertically, and draw a place value chart and chips.
708 – 529.
7 hundred = 700.
8 ones = 8.
700 + 8 = 708.
5 hundred = 500.
2 tens = 20.
9 ones = 9.
500 + 20 + 9 = 529.
708 – 529 = 179.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (4)

Question 3.
Choose a strategy to solve, and explain why you chose that strategy.

a. 600 – 437Explanation:

Answer:
600 – 437 = 163.

Explanation:
In the above-given question,
given that,
600 – 437.
600 – 100 = 500.
500 – 100 = 400.
400 + 37 = 437.
600 – 437 = 163.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (5)

b. 808 – 597Explanation:

Answer:
808 – 597 = 211.

Explanation:
In the above-given question,
given that,
808 – 597.
8 hundred = 800.
8 ones = 8.
800 + 8 = 808.
5 hundred = 500.
9 tens = 90.
7 ones = 7.
500 + 90 + 7 = 597.
808 – 597 = 211.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (6)

Question 4.
Prove the student’s strategy by solving both problems to check that their solutions are the same. Explain to your partner why this way works.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (7)

Answer:
800 – 543 = 257.
799 – 542 = 257.

Explanation:
In the above-given question,
given that,
the student’s strategy is the same.
800 – 543 = 257.
799 – 542 = 257.
257 + 542 = 799.

Question 5.
Use the simplifying strategy from Problem 4 to solve the following two problems.
a. 600 – 547

Answer:
600 – 547 = 53.

Explanation:
In the above-given question,
given that,
600 – 547.
600 – 100 = 500.
500 + 47 = 547.
600 – 547 = 53.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (8)

b. 700 – 513

Answer:
700 – 513 = 187.

Explanation:
In the above-given question,
given that,
700 – 513.
700 – 100 = 600.
600 – 100 = 500.
500 + 13 = 513.
700 – 513 = 187.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (9)

Eureka Math Grade 2 Module 5 Lesson 18 Exit Ticket Answer Key

Choose a strategy to solve, and explain why you chose that strategy.

Question 1.

1. 400 – 265Explanation:

Answer:
400 – 265 = 135.

Explanation:
In the above-given question,
given that,
400 – 265.
400 – 100 = 300.
300 – 35 = 265.
265 + 35 = 300.
400 – 265 = 135.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (10)

Question 2.

2. 507 – 198Explanation:

Answer:
507 – 198 = 309.

Explanation:
In the above-given question,
given that,
507 – 198.
507 – 100 = 407.
407 – 100 = 307.
307 – 100 = 207.
207 – 9 = 198.
507 – 198 = 309.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (11)

Eureka Math Grade 2 Module 5 Lesson 18 Homework Answer Key

Question 1.
Use the arrow way and counting on to solve.
a. 700 – 462

Answer:
700 – 462 = 238.

Explanation:
In the above-given question,
given that,
700 – 462.
700 – 100 = 600.
600 – 100 = 500.
500 – 100 = 400.
400 + 62 = 462.
700 – 462 = 238.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (12)

b. 900 – 232

Answer:
900 – 232 = 668.

Explanation:
In the above-given question,
given that,
900 – 232.
900 – 100 = 700.
700 – 100 = 600.
600 + 68 = 668.
900 – 232 = 668.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (13)

Question 2.
Solve vertically, and draw a place value chart and chips. Rename in one step.
a. 907 – 467

Answer:
907 – 467 = 440.

Explanation:
In the above-given question,
given that,
907 – 467.
9 hundred = 900.
7 ones = 7.
900 + 7 = 907.
4 hundred = 400.
6 tens = 60.
7 ones = 7.
400 + 60 + 7 = 467.
907 – 467 = 440.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (14)

b. 803 – 667

Answer:
803 – 667 = 136.

Explanation:
In the above-given question,
given that,
803 – 667.
8 hundred = 800.
3 ones = 3.
800 + 3 = 803.
6 hundred = 600.
6 tens = 60.
7 ones = 7.
600 + 60 + 7 = 667.
803 – 667 = 136.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (15)

Question 3.
Choose a strategy to solve, and explain why you chose that strategy.

a. 700 – 390Explanation:

Answer:
700 – 390 = 310.

Explanation:
In the above-given question,
given that,
700 – 390.
7 hundred = 700.
3 hundred = 300.
9 tens = 90.
300 + 90 = 390.
700 – 390 = 310.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (16)

b. 919 – 657Explanation:

Answer:
919 – 657 = 262.

Explanation:
In the above-given question,
given that,
919 – 657.
9 hundred = 900.
1 ten = 10.
9 ones = 9.
900 + 10 + 9 = 919.
6 hundred = 600.
5 tens = 50.
7 ones = 7.
600 + 50 + 7 = 657.
919 – 657 = 262.
Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (17)

Question 4.
Explain why 300 – 186 is the same as 299 – 185.
Explanation:

Answer:
300 – 186 = 114.
299 – 185 = 114.

Explanation:
In the above-given question,
given that,
yes both the problems get the same answer.
300 – 186 = 114.
299 – 185 = 114.

Question 5.
Solve 500 – 278 using the simplifying strategy from Problem 4.
Solution:

Answer:
500 – 278 = 222.

Explanation:
In the above-given question,
given that,
5 hundred = 500.
2 hundred = 200.
7 tens = 70.
8 ones = 8.
200 + 70 + 8 = 278.
500 – 278 = 222.

Eureka Math Grade 2 Module 5 Lesson 18 Answer Key (2024)
Top Articles
Latest Posts
Article information

Author: Neely Ledner

Last Updated:

Views: 5389

Rating: 4.1 / 5 (42 voted)

Reviews: 81% of readers found this page helpful

Author information

Name: Neely Ledner

Birthday: 1998-06-09

Address: 443 Barrows Terrace, New Jodyberg, CO 57462-5329

Phone: +2433516856029

Job: Central Legal Facilitator

Hobby: Backpacking, Jogging, Magic, Driving, Macrame, Embroidery, Foraging

Introduction: My name is Neely Ledner, I am a bright, determined, beautiful, adventurous, adventurous, spotless, calm person who loves writing and wants to share my knowledge and understanding with you.