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## Engage NY Eureka Math 2nd Grade Module 4 Lesson 1 Answer Key

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### Eureka Math Grade 2 Module 4 Lesson 1 Problem Set Answer Key

Question 1.
Complete each more or less statement.
a. 1 more than 66 is __67.______.

66 + 1 = 67.

Explanation:
In the above-given question,
given that,
complete each number.
1 more than 66.
66 + 1 = 67.

b. 10 more than 66 is __76_____.

66 + 10 = 76.

Explanation:
In the above-given question,
given that,
complete each number.
10 more than 66.
66 + 10 = 76.

c. 1 less than 66 is __65_______.

66 – 1 = 65.

Explanation:
In the above-given question,
given that,
complete each number.
1 less than 66.
66 – 1 = 65.

d. 10 less than 66 is __56______.

66 – 10 = 56.

Explanation:
In the above-given question,
given that,
complete each number.
10 less than 66.
66 – 10 = 56.

e. 56 is 10 more than ___46____.

46 + 10 = 56.

Explanation:
In the above-given question,
given that,
complete each number.
10 more than 46.
46 + 10 = 56.

f. 88 is 1 less than __87._______.

88 – 1 = 87.

Explanation:
In the above-given question,
given that,
complete each number.
1 less than 88.
88 – 1 = 87.

g. ___57____ is 10 less than 67.

67 – 10 = 57.

Explanation:
In the above-given question,
given that,
complete each number.
10 less than 67.
67 – 10 = 57.

h. ____73___ is 1 more than 72.

72 + 1 = 73.

Explanation:
In the above-given question,
given that,
complete each number.
1 more than 72.
72 + 1 = 73.

i. 86 is _____10_______ than 96.

96 – 10 = 86.

Explanation:
In the above-given question,
given that,
complete each number.
10 less than 96.
96 – 10 = 86.

j. 78 is _____1________ than 79.

78 + 1 = 79.

Explanation:
In the above-given question,
given that,
complete each number.
1 more than 78.
78 + 1 = 79.

Question 2.
Circle the rule for each pattern.
a. 34, 33, 32, 31, 30, 29            1 less          1 more           10 less          10 more

34, 33, 32, 31, 30, 29.

Explanation:
In the above-given question,
given that,
complete each number.
1 less than each number.
34 – 1 = 33.
33 – 1 = 32.
32 – 1 = 31.
31 – 1 = 30.
30 – 1 = 29. b. 53, 63, 73, 83, 93                 1 less          1 more            10 less          10 more

53, 63, 73, 83, 93.

Explanation:
In the above-given question,
given that,
complete each number.
10 more than each number.
53 + 10 = 63.
63 + 10 = 73.
73 + 10 = 83.
83 + 10 = 93. Question 3.
Complete each pattern.
a. 37, 38, 39, __40___, _41____, __42___

37, 38, 39, 40, 41, 42.

Explanation:
In the above-given question,
given that,
complete each number.
10 more than each number.
37 + 1 = 38.
38 + 1 = 39.
39 + 1 = 40.
40 + 1 = 41.
41 + 1 = 42.

b. 68, 58, 48, __38___, __28___, __18___

68, 58, 48, 38, 28, 18.

Explanation:
In the above-given question,
given that,
complete each number.
10 less than each number.
68 – 10 = 58.
58 – 10 = 48.
48 – 10 = 38.
38 – 10 = 28.
28 – 10 = 18.

c. 51, 50, _49____, _48____, __47___, 46

51, 50, 49, 48, 47, 46.

Explanation:
In the above-given question,
given that,
complete each number.
1 less than each number.
51 – 1 = 50.
50 – 1 = 49.
49 – 1 = 48.
48 – 1 = 47.
47 – 1 = 46.

d. 9, 19, ___29__, _39____, __49___, 59

9, 19, 29, 39, 40, 59.

Explanation:
In the above-given question,
given that,
complete each number.
10 more than each number.
9 + 10 = 19.
19 + 10 = 29.
29 + 10 = 39.
39 + 10 = 49.
49 + 10 = 59.

Question 4.
Complete each statement to show mental math using the arrow way.
a. 39 + 1 = 40.
56 + 10 = 66.
42 – 10 = 32.
80 – 1 = 79.

Explanation:
In the above-given question,
given that,
39 + 1 = 40.
56 + 10 = 66.
42 – 10 = 32.
80 – 1 = 79 b. 32 + 1 = 33.
33 + 10 = 43.
87 – 10 = 77.
77 – 1 = 76.

Explanation:
In the above-given question,
given that,
32 + 1 = 33.
33 + 10 = 43.
87 – 10 = 77.
77 – 1 = 76. c. 48 + 10 = 58.
58 + 10 = 68.
68 + 10 = 78.
78 + 1 = 88.
88 + 1 = 98.

Explanation:
In the above-given question,
given that,
48 + 10 = 58.
58 + 10 = 68.
68 + 10 = 78.
78 + 1 = 88.
88 + 1 = 98. Question 5.
Complete each sequence.
a. 45 + 10 = 55.
55 – 1 = 54.
54 – 1 = 53.
53 – 10 = 43.
43 – 10 = 33.

Explanation:
In the above-given question,
given that,
45 + 10 = 55.
55 – 1 = 54.
54 – 1 = 53.
53 – 10 = 43.
43 – 10 = 33. b. 45 + 10 = 55.
55 – 1 = 54.
54 – 1 = 53.
53 – 10 = 43.
43 – 10 = 33.

Explanation:
In the above-given question,
given that,
45 + 10 = 55.
55 – 1 = 54.
54 – 1 = 53.
53 – 10 = 43.
43 – 10 = 33. Question 6.
Solve each word problem using the arrow way to record your mental math.
a. Yesterday Isaiah made 39 favor bags for his party. Today he made 23 more. How many favor bags did he make for his party?

The number of favor bags did he make for his party = 62.

Explanation:
In the above-given question,
given that,
Yesterday Isaiah made 39 favor bags for his party.
39 – 10 = 28.
28 – 1 = 27.
27 – 1 = 26.
26 – 1 = 25.
25 – 1 = 24.
24 – 1 = 23.
23 + 39 = 62.

b. There are 61 balloons. 12 blew away. How many are left?

The number of balloons is left = 49.

Explanation:
In the above-given question,
given that,
There are 61 balloons.
out of 61 balloons, 12 blew away.
61 – 12 = 49

Eureka Math Grade 2 Module 4 Lesson 1 Exit Ticket Answer Key

Question 1.
Complete each pattern.
a. 48, 47, 46, 45, 44, __43_____, ___42____, __41_____

48, 47, 46, 45, 44, 43, 42, 41.

Explanation:
In the above-given question,
given that,
complete each number.
1 less than each number.
48 – 1 = 47.
47 – 1 = 46.
46 – 1 = 45.
45 – 1 = 44.
44 – 1 = 43.
43 – 1 = 42.
42 – 1 = 41.

b. 78, 68, 58, 48, 38, ___28____, __18_____, ___8____

78, 68, 58, 48, 38, 28, 18, 8.

Explanation:
In the above-given question,
given that,
complete each number.
10 less than each number.
78 – 10 = 68.
68 – 10 = 58.
58 – 10 = 48.
48 – 10 = 38.
38 – 10 = 28.
28 – 10 = 18.
18 – 10 = 8.

c. 35, 34, 44, 43, 53, _63______, ___73____, ___83____

35, 34, 44, 43, 53, 63, 73, 83.

Explanation:
In the above-given question,
given that,
complete each number.
1 less than each number.
35 – 1 = 34.
34 – 1 = 33.
33 – 1 = 32.
32 – 1 = 31.
31 – 1 = 30.

Question 2.
Create two patterns using one of these rules for each: + 1, – 1, + 10, or – 10.
a. ___3____, ___2____, ___13_____, ___3_____

3, 2, 13, 3.

Explanation:
In the above-given question,
given that,
complete each number.
1 less than each number.
1 + 2 = 3.
3 – 1 = 2.
10 + 3 = 13.
13 – 10 = 3.

Rule for Pattern (a): _______adding 10____________

3, 2, 13, 3.

Explanation:
In the above-given question,
given that,
complete each number.
1 less than each number.
1 + 2 = 3.
3 – 1 = 2.
10 + 3 = 13.
13 – 10 = 3.

b. ____3___, ___2____, ___13_____, ___3_____

3, 2, 13, 3.

Explanation:
In the above-given question,
given that,
complete each number.
1 less than each number.
1 + 2 = 3.
3 – 1 = 2.
10 + 3 = 13.
13 – 10 = 3.

Question 1.
Complete each more or less statement.
a. 1 more than 37 is ___ 38_____.

38 – 1 = 37.

Explanation:
In the above-given question,
given that,
complete each number.
1 less than 38.
38 – 1 = 37.

b. 10 more than 37 is ____47__.

37 + 10 = 47.

Explanation:
In the above-given question,
given that,
complete each number.
10 more than 37.
37 + 10 = 47.

c. 1 less than 37 is __ 36_______.

37 – 1 = 36.

Explanation:
In the above-given question,
given that,
complete each number.
1 less than 37.
37 – 1 = 36.

d. 10 less than 37 is _27______.

37 – 10 = 27.

Explanation:
In the above-given question,
given that,
complete each number.
10 less than 37.
37 – 10 = 27.

e. 58 is 10 more than __68_____.

68 – 10 = 58.

Explanation:
In the above-given question,
given that,
complete each number.
10 less than 68.
68 – 10 = 58.

f. 29 is 1 less than _28_______.

29 – 1 = 28.

Explanation:
In the above-given question,
given that,
complete each number.
1 less than 29.
29 – 1 = 28.

g. ____55___ is 10 less than 45.

55 – 10 = 45.

Explanation:
In the above-given question,
given that,
complete each number.
10 less than 55.
55 – 10 = 45.

h. ____37___ is 1 more than 38.

38 – 1 = 37.

Explanation:
In the above-given question,
given that,
complete each number.
1 more than 38.
38 – 1 = 37.

i. 49 is ______1______ than 50.

50 – 1 = 49.

Explanation:
In the above-given question,
given that,
complete each number.
50 less than 49.
50 – 1 = 49.

j. 32 is _____10________ than 22.

32 – 10 = 22.

Explanation:
In the above-given question,
given that,
complete each number.
10 less than 32.
32 – 10 = 22.

Question 2.
Complete each pattern and write the rule.
a. 44, 45, __46__, _47___, 48

44, 45, 46, 47, 48.

Explanation:
In the above-given question,
given that,
complete each number.
1 more the 44.
44 + 1 = 45.
45 + 1 = 46.
46 + 1 = 47.
47 + 1 = 48.
48 + 1 = 49.

b. 44, ___34_, 24, __14__, 4
Rule: __subtracting______10________

44 – 10 = 34.

Explanation:
In the above-given question,
given that,
complete each number.
10 less than 44.
44 – 10 = 34.

c. 44, _54___, __64__, 74, 84

44, 54, 64, 74, 84.

Explanation:
In the above-given question,
given that,
44 + 10 = 54.
54 + 10 = 64.
64 + 10 = 74.
74 + 10 = 84.

d. ___44_, 43, 42, __41__, 40
Rule: ____subtracting_____1____________________

44, 43, 42, 41, 40.

Explanation:
In the above-given question,
given that,
subtracting 1.
44 – 1 = 43.
43 – 1 = 42.
42 – 1 = 41.
41 – 1 = 40.

e. __64__, __54__, 44, 34, __24__
Rule: ____subtracting_______ten____________

64, 54, 44, 34, 24.

Explanation:
In the above-given question,
given that,
subtracting tens.
64 – 10 = 54.
54 – 10 = 44.
44 – 10 = 34.
34 – 10 = 24.

f. 41, __40__, __39__, 38, 37
Rule: _____subtracting____1____________________

41, 40, 39, 38, 37.

Explanation:
In the above-given question,
given that,
subttacting 10’s.
41 – 1 = 40.
40 – 1 = 39.
39 – 1 = 38.
38 – 1 = 37.

Question 3.
Label each statement as true or false.
a. 1 more than 36 is the same as 1 less than 38. ____37__________

38 – 1 = 37.

Explanation:
In the above-given question,
given that,
complete each number.
1 less than 38.
38 – 1 = 37.

b. 10 less than 47 is the same as 1 more than 35. ____37_________

47 – 10 = 37.

Explanation:
In the above-given question,
given that,
complete each number.
10 less than 47.
47 – 10 = 37.

c. 10 less than 89 is the same as 1 less than 90. ____89__________

90 – 1 = 89.

Explanation:
In the above-given question,
given that,
complete each number.
1 less than 90.
90 – 1 = 89.

d. 10 more than 41 is the same as 1 less than 43. _____42________

43 – 1 = 42.

Explanation:
In the above-given question,
given that,
complete each number.
1 less than 43.
43 – 1 = 42.

Question 4.
Below is a chart of balloons at the county fair.

 Color  of Balloons Number of Balloons Red 59 Yellow 61 Green 65 Blue 60 Pink 51

a. Use the following to complete the chart and answer the question.

• The fair has 1 more blue than red balloons.
• There are 10 fewer pink than yellow balloons.

Are there more blue or pink balloons?

The number of blue balloons is more.

Explanation:
In the above-given question,
given that,
the number of pink balloons = 51.
the number of blue balloons = 60.
60 > 51.

b. If 1 red balloon pops and 10 red balloons fly away, how many red balloons are left? Use the arrow way to show your work.