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Engage NY Eureka Math 2nd Grade Module 4 Lesson 21 Answer Key
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Eureka Math Grade 2 Module 4 Lesson 21 Problem Set Answer Key
Question 1.
Solve vertically. Draw chips on the place value chart and bundle, when needed.
a. 65 + 75 = ___140______
Answer:
65 + 75 = 140.
Explanation:
In the above-given question,
given that,
draw chips on the place value chart.
6 x 10 = 60.
5 x 1 = 5.
60 + 5 = 65.
7 x 10 = 70.
5 x 1 = 5.
60 + 5 = 65.
70 + 5 = 75.
65 + 75 = 140.
b. 84 + 29 = ___113______
Answer:
84 + 29 = 113.
Explanation:
In the above-given question,
given that,
draw chips on the place value chart.
8 x 10 = 80.
4 x 1 = 4.
80 + 4 = 84.
2 x 10 = 20.
9 x 1 = 9.
20 + 9 = 29.
84 + 29 = 113
c. 91 + 19 = ____110______
Answer:
91 + 19 = 110.
Explanation:
In the above-given question,
given that,
draw chips on the place value chart.
9 x 10 = 90.
1 x 1 = 1.
1 x 10 = 10.
9 x 1 = 9.
90 + 1 = 91.
10 + 9 = 19.
91 + 19 = 110.
d. 163 + 27 = _____190____
Answer:
163 + 27 = 190.
Explanation:
In the above-given question,
given that,
draw chips on the place value chart.
1 x 100 = 100.
6 x 10 = 60.
3 x 1 = 3.
100 + 60 + 3 = 163.
2 x 10 = 20.
7 x 1 = 7.
20 + 7 = 27.
163 + 27 = 190.
Question 2.
Abby solved 99 + 99 on her place value chart and in vertical form, but she got an incorrect answer. Check Abby’s work, and correct it.
What did Abby do correctly?
_________________________________________________________________
_________________________________________________________________
Answer:
Abby solved the place value chart correctly.
Explanation:
In the above-given question,
given that,
draw chips on the place value chart.
9 tens + 1 ten.
9 tens = 90.
1 ten = 10.
90 + 10 = 100.
8 tens = 80.
8 ones = 8.
100 + 80 + 8 = 188.
What did Abby do incorrectly?
_________________________________________________________________
_________________________________________________________________
Answer:
Abby did Addition incorrectly.
Explanation:
In the above-given question,
given that,
draw chips on the place value chart.
99 + 99 = 198.
but he did 188.
so he was wrong.
Eureka Math Grade 2 Module 4 Lesson 21 Exit Ticket Answer Key
Solve vertically. Draw chips on the place value chart and bundle, when needed.
Question 1.
58 + 67 = ___125______
Answer:
58 + 67 = 125.
Explanation:
In the above-given question,
given that,
draw chips on the place value chart.
5 x 10 = 50.
8 x 1 = 8.
6 x 10 = 60.
7 x 1 = 7.
50 + 8 = 58.
60 + 7 = 67.
58 + 67 = 125.
Question 2.
43 + 89 = ___132______
Answer:
43 + 89 = 132.
Explanation:
In the above-given question,
given that,
draw chips on the place value chart.
4 x 10 = 40.
3 x 1 = 3.
40 + 3 = 43.
8 x 10 = 80.
9 x 1 = 9.
80 + 9 = 89.
43 + 89 = 132.
Eureka Math Grade 2 Module 4 Lesson 21 Homework Answer Key
Question 1.
Solve vertically. Draw chips on the place value chart and bundle, when needed.
a. 45 + 76 = ___121______
Answer:
45 + 76 = 121.
Explanation:
In the above-given question,
given that,
draw chips on the place value chart.
4 x 10 = 40.
5 x 1 = 5.
7 x 10 = 70.
6 x 1 = 6.
40 + 5 = 45.
70 + 6 = 76.
45 + 76 = 121.
b. 62 + 89 = ___151______
Answer:
62 + 89 = 151.
Explanation:
In the above-given question,
given that,
draw chips on the place value chart.
6 x 10 = 60.
2 x 1 = 2.
8 x 10 = 80.
9 x 1 = 9.
60 + 2 = 62.
80 + 9 = 89.
62 + 89 = 151.
c. 97 + 79 = __176________
Answer:
97 + 79 = 176.
Explanation:
In the above-given question,
given that,
draw chips on the place value chart.
9 x 10 = 90.
7 x 1 = 7.
90 + 7 = 97.
7 x 10 = 70.
9 x 1 = 9.
70 + 9 = 79.
97 + 79 = 176.
d. 127 + 78 = ____205_____
Answer:
127 + 78 = 205.
Explanation:
In the above-given question,
given that,
draw chips on the place value chart.
1 x 100 = 100.
2 x 10 = 20.
7 x 1 = 7.
7 x 10 = 70,
8 x 1 = 8.
100 + 20 + 7 = 127.
70 + 8 = 78.
127 + 78 = 205.
Question 2.
The blue team scored 37 fewer points than the white team. The blue team scored 69 points.
a. How many points did the white team score?
Answer:
The number of points did the white team score = 106.
Explanation:
In the above-given question,
given that,
The blue team scored 37 fewer points than the white team.
the blue team scored 69 points.
69 + 37 = 106.
so the number of points did the white team score = 106.
b. How many points did the blue and white teams score altogether?
Answer:
The number of points did the blue and white teams score = 175.
Explanation:
In the above-given question,
given that,
The blue team scored 37 fewer points than the white team.
the blue team scored 69 points.
69 + 37 = 106.
106 + 69 = 175.
so the number of points did the blue and white teams score = 175.
