Place value disks are the important topics in maths. This will be helpful in the real-time environment. Know-how and where to apply the formulas from this page. Get a detailed explanation for all the questions here. Download Eureka Math Answers Grade 2 chapter 12 pdf for free of cost. As per your convenience, we have provided the solutions in pdf format so that you can prepare offline.
Engage NY Eureka Math 2nd Grade Module 4 Lesson 12 Answer Key
Get the guided notes for the chapter 12 Answer Key from here. This will be the best resource to enhance your math skills. The topics covered in this chapter are Place value disks. test yourself by solving questions given at the end of the chapter.
Eureka Math Grade 2 Module 4 Lesson 12 Problem Set Answer Key
Question 1.
Use place value disks to solve each problem. Rewrite the problem vertically, and record each step as shown in the example.
a. 22 – 18
Answer:
22 – 18 = 4.
Explanation:
In the above-given question,
given that,
2 x 10 = 20.
2 x 1 = 2.
20 + 2 = 22.
1 x 10 = 10.
8 x 1 = 8.
10 + 8 = 18.
22 – 18 = 4.
b. 20 – 12
Answer:
20 – 12 = 8.
Explanation:
In the above-given question,
given that,
2 x 10 = 20.
1 x 10 = 10.
2 x 1 = 2.
10 + 2 = 12.
20 – 12 = 8.
c. 34 – 25
Answer:
34 -25 = 9.
Explanation:
In the above-given question,
given that,
3 x 10 = 30.
4 x 1 = 4.
2 x 10 = 20.
5 x 1 = 5.
30 + 4 = 34.
20 + 5 = 25.
34 – 25 = 9.
d. 25 – 18
Answer:
25 – 18 = 7.
Explanation:
In the above-given question,
given that,
2 x 10 = 20.
5 x 1 = 5.
20 + 5 = 25.
1 x 10 = 10.
8 x 1 = 8.
10 + 8 = 18.
25 – 18 = 7.
e. 53 – 29
Answer:
53 – 29 = 24.
Explanation:
In the above-given question,
given that,
5 x 10 = 50.
3 x 1 = 3.
2 x 10 = 20.
9 x 1 = 9.
50 + 3 = 53.
20 + 9 = 29.
53 – 29 = 24.
f. 71 – 27
Answer:
71 – 27 = 44.
Explanation:
In the above-given question,
given that,
7 x 10 = 70.
1 x 1 = 1.
2 x 10 = 20.
7 x 1 = 7.
70 + 1 = 71.
20 + 7 = 27.
71 – 27 = 44.
Question 2.
Terry and Pam both solved the problem 64 – 49. They came up with different answers and cannot agree on who is correct. Terry answered 25, and Pam answered 15. Use place value disks to explain who is correct, and rewrite the problem vertically to solve.
Answer:
Pam was correct.
Explanation:
In the above-given question,
given that,
Terry and Pam both solved the problem 64 – 49.
64 – 49 = 15.
so Pam was correct.
For early finishers:
Question 3.
Samantha has 42 marbles, and Graham has 17 marbles.
a. How many more marbles does Samantha have than Graham?
Answer:
The number of marbles does Samantha have than Graham = 25.
Explanation:
In the above-given question,
given that,
Samantha has 42 marbles, and Graham has 17 marbles.
42 – 17 = 25.
25 more marbles Samantha have than Graham.
b. James has 25 fewer marbles than Samantha. How many marbles does James have?
Answer:
The number of marbles does James have = 17.
Explanation:
In the above-given question,
given that,
James has 25 fewer marbles than Samantha.
42 – 25 = 17.
so the number of marbles does James have = 17.
Eureka Math Grade 2 Module 4 Lesson 12 Exit Ticket Answer Key
Sherry made a mistake while subtracting. Explain her mistake.
Answer:
44 – 26 = 18.
Explanation:
In the above-given question,
given that,
Sherry made a mistake while subtracting.
the mistake was she wrote the wrong answer.
4 x 10 = 40.
4 x 1 = 4.
40 + 4 = 44.
2 x 10 = 20.
6 x 1 = 6.
20 + 6 = 26.
44 – 26 = 18.
Eureka Math Grade 2 Module 4 Lesson 12 Homework Answer Key
Question 1.
Use place value disks to solve each problem. Rewrite the problem vertically, and record each step as shown in the example.
a. 34 – 18
Answer:
34 – 18 = 16.
Explanation:
In the above-given question,
given that,
3 x 10 = 30.
4 x 1 = 4.
30 + 4 = 34.
1 x 10 = 10.
8 x 1 = 8.
10 + 8 = 18.
34 – 18 = 16.
b. 41 – 16
Answer:
41 – 16 = 25.
Explanation:
In the above-given question,
given that,
4 x 10 = 40.
1 x 1 = 1.
40 + 1 = 41.
1 x 10 = 10.
6 x 1 = 6.
10 + 6 = 16.
41 – 16 = 25.
c. 33 – 15
Answer:
33 – 15 = 18.
Explanation:
In the above-given question,
given that,
3 x 10 = 30.
3 x 1 = 3.
30 + 3 = 33.
1 x 10 = 10.
5 x 1 = 5.
33 – 15 = 18.
d. 46 – 18
Answer:
46 – 18 = 28.
Explanation:
In the above-given question,
given that,
4 x 10 = 40.
6 x 1 = 6.
1 x 10 = 10.
8 x 1 = 8.
40 + 6 = 46.
10 + 8 = 18.
46 – 18 = 28.
e. 62 – 27
Answer:
62 – 27 = 35.
Explanation:
In the above-given question,
given that,
6 x 10 = 60.
2 x 1 = 2.
60 + 2 = 62.
2 x 10 = 20.
7 x 1 = 7.
20 + 7 = 27.
62 – 27 = 35.
f. 81 – 34
Answer:
81 – 34 = 47.
Explanation:
In the above-given question,
given that,
8 x 10 = 80.
1 x 1 = 1.
80 + 1 = 81.
3 x 10 = 30.
4 x 1 = 4.
30 + 4 = 34.
81 – 34 = 47.
Question 2.
Some first- and second-grade students voted on their favorite drink. The table shows the number of votes for each drink.
| Types of Drink | Number of Votes |
| Milk | 28 |
| Apple Juice | 19 |
| Grape Juice | 16 |
| Fruit Punch | 37 |
| Orange Juice | 44 |
a. How many more students voted for fruit punch than for milk? Show your work.
Answer:
The number of students who voted for fruit punch than for milk = 9.
Explanation:
In the above-given question,
given that,
the students who voted for milk = 28.
the students who voted for fruit punch = 37.
37 – 28 = 9.
so the number of students who voted for fruit punch than for milk = 9.
b. How many more students voted for orange juice than for grape juice? Show your work.
Answer:
The number of students who voted for orange juice than for grape juice = 28.
Explanation:
In the above-given question,
given that,
the students who voted for orange juice = 44.
the students who voted for grape juice = 16.
44 – 16 = 28.
so the number of students who voted for orange juice than for grape juice = 28.
c. How many fewer students voted for apple juice than for milk? Show your work.
Answer:
The number of students who voted for apple juice than for milk = 9.
Explanation:
In the above-given question,
given that,
the students who voted for milk = 28.
the students who voted for apple juice = 19.
28 – 19 = 9.
so the number of students who voted for apple juice than for milk = 9.