Engage NY Eureka Math 2nd Grade Module 4 End of Module Assessment Answer Key
Eureka Math Grade 2 Module 4 End of Module Assessment Answer Key
Question 1.
Solve mentally:
a. 72 + 10 = __82_____
Answer:
72 + 10 = 82.
Explanation:
In the above-given question,
given that,
solve mentally.
72 + 10 = 82.
82 – 10 = 72.
b. ___63____ = 73 – 10
Answer:
73 – 10 = 63.
Explanation:
In the above-given question,
given that,
solve mentally.
63 + 10 = 73.
73 – 10 = 63.
c. ___164____ + 10 = 174
Answer:
164 + 10 = 174.
Explanation:
In the above-given question,
given that,
solve mentally.
164 + 10 = 174.
174 – 10 = 164.
d. 83 + 100 = _183______
Answer:
83 + 100 = 183.
Explanation:
In the above-given question,
given that,
solve mentally.
83 + 100 = 183.
183 – 100 = 83.
e. __82_____ = 182 – 100
Answer:
182 – 100 = 82.
Explanation:
In the above-given question,
given that,
solve mentally.
182 – 100 = 82.
82 + 100 = 182.
f. ___181____ – 100 = 81
Answer:
181 – 100 = 81.
Explanation:
In the above-given question,
given that,
solve mentally.
181 – 100 = 81.
81 + 100 = 181.
g. 65 + 40 = ___105____
Answer:
65 + 40 = 105.
Explanation:
In the above-given question,
given that,
solve mentally.
65 + 40 = 105.
105 – 40 = 65.
h. __126_____ = 166 – 40
Answer:
166 – 40 = 126.
Explanation:
In the above-given question,
given that,
solve mentally.
126 = 166 – 40.
126 + 40 = 166.
i. 127 + ___40____ = 167
Answer:
127 + 40 = 167.
Explanation:
In the above-given question,
given that,
solve mentally.
127 + 40 = 167.
j. 85 + 42 = ___127____
Answer:
85 + 42 = 127.
Explanation:
In the above-given question,
given that,
solve mentally.
85 + 42 = 127.
127 – 42 = 85.
k. ___145____ = 186 – 41
Answer:
186 – 41 = 145.
Explanation:
In the above-given question,
given that,
solve mentally.
186 – 41 = 145.
145 + 41 = 186.
l. 189 – 47 = ___142____
Answer:
189 – 47 = 142.
Explanation:
In the above-given question,
given that,
solve mentally.
189 – 47 = 142.
142 + 47 = 189.
Question 2.
Solve:
a. Find the solution and model how you found your answer.
| 87 + 56 =143 | Model: 80 + 7 = 87. 50 + 6 = 56. 87 + 56 = 143 |
| 38 + 68 + 71 + 12 = 189 | Model: 38 + 68 + 71 + 12 = 189 |
Answer:
87 + 56 = 143.
38 + 68 + 71 + 12 = 189.
Explanation:
In the above-given question,
given that,
solve mentally.
87 + 56 = 143.
143 – 56 = 87.
38 + 68 + 71 + 12 = 189.
b. Solve and explain your answer using place value.
| 91 – 24 = 67 | 154 + 27 = 181 |
| 105 – 42 = 63 | 86 + 45 =131 |
Answer:
91 – 24 = 67.
105 – 42 = 63.
154 + 27 = 181.
86 + 45 = 131.
Explanation:
In the above-given question,
given that,
solve mentally.
91 – 24 = 67.
105 – 42 = 63.
154 + 27 = 181.
86 + 45 = 131.
c. Susan and James solved 125 + 32 in different ways. Explain why both ways are correct.
Answer:
125 + 32 = 157.
Explanation:
In the above-given question,
given that,
solve using two different strategies.
125 + 32.
125 + 10 = 135.
135 + 10 = 145.
145 + 10 = 155.
155 + 2 = 157.
Question 3.
Find the missing numbers to make each statement true. Show your mental math strategy.
a.
Answer:
98 + 10 = 108.
108 + 1 = 109.
Explanation:
In the above-given question,
given that,
solve using mental meth strategy.
98 + 10 = 108.
108 + 1 = 109.
b. 6 tens + 4 ones = 70 – ___6____
Answer:
64 = 64.
Explanation:
In the above-given question,
given that,
solve using two different strategies
6 tens + 4 ones = 64.
70 – 6 = 64.
c. 25 + 75 = ___70_____ + 30
Answer:
25 + 75 = 100.
70 + 30 = 100.
Explanation:
In the above-given question,
given that,
solve using two different strategies.
25 + 75 = 100.
70 + 30 = 100.
d. 39 + _____43______ = 82
Answer:
39 + 43 = 82.
Explanation:
In the above-given question,
given that,
solve using two different strategies
30 + 9 = 39.
40 + 3 = 43.
39 + 43 = 82.
e. 100 – ____8_____ = 45 + 15 + 32
Answer:
100 – 8 = 92.
45 + 15 + 32 = 92.
Explanation:
In the above-given question,
given that,
solve using two different strategies
100 – 8 = 92.
45 + 15 + 32 = 92.
Question 4.
Sally went shopping. She spent $86 on groceries and $39 on clothing.
a. How much more did Sally spend on groceries than on clothing? Show your work.
Answer:
The amount did Sally spend on groceries than on clothing = $47.
Explanation:
In the above-given question,
given that,
Sally went shopping.
She spent $86 on groceries and $39 on clothing.
86 – 39 = 47.
so the amount did Sally spend on groceries than on clothing = $47.
b. After Sally’s shopping trip, she had $12 left. How much money did she have to begin with?
Show your work.
Answer:
The money did she have to begin with = $137.
Explanation:
In the above-given question,
given that,
After Sally’s shopping trip, she had $12 left.
86 + 39 = 125.
125 + 12 = 137.
so the money did she have to begin with = 137.
c. If Sally hadn’t purchased the clothing, would she have been able to afford a $55 necklace?
Explain your answer.
Answer:
No, she did not have been able to afford a $55 necklace.
Explanation:
In the above-given question,
given that,
If Sally hadn’t purchased the clothing.
clothing = $47.
necklace = $55.
so she did not have been able to afford a $55 necklace.
d. How much money would Sally need to buy the groceries, the clothing, and the necklace? Show your work with a model.
Answer:
The money would Sally need to buy the groceries = $180.
Explanation:
In the above-given question,
given that,
After Sally’s shopping trip, she had $12 left.
86 + 39 = 125.
125 + 55 = 180.
so the money would Sally need to buy the groceries = 180.