Engage NY Eureka Math 4th Grade Module 5 Lesson 38 Answer Key
Eureka Math Grade 4 Module 5 Lesson 38 Problem Set Answer Key
Question 1.
Fill in the unknown factors.
a. 7 × 3\(\frac{3}{4}\) = (____ × 3) + (____ × \(\frac{4}{5}\))
Answer:
7 x 3\(\frac{3}{4}\) = 26.6.
Explanation:
In the above-given question,
given that,
7 x 3(3/4).
7 x 3 + 7 x 4/5.
21 + 7 x 0.8.
21 + 5.6.
26.6.
b. 3 × 12\(\frac{7}{8}\) = (3 × __12___) + (3 × __7/8___)
Answer:
3 x 12\(\frac{7}{8}\) = 38.625.
Explanation:
In the above-given question,
given that,
3 x 12(7/8).
3 x 12 + 3 x 7/8.
36 + 3 x 0.875.
36 + 2.625.
38.625.
Question 2.
Multiply. Use the distributive property.
a. 7 × 8\(\frac{2}{5}\)
Answer:
7 x 8\(\frac{2}{5}\) = 58.8.
Explanation:
In the above-given question,
given that,
7 x 8(2/5).
7 x 8 + 7 x 2/5.
56 + 7 x 0.4.
56 + 2.8.
58.8.
b. 4\(\frac{5}{6}\) × 9
Answer:
4 x 9\(\frac{5}{6}\) = 6.33.
Explanation:
In the above-given question,
given that,
4 x 9(5/6).
4 x 9 + 4 x 5/6.
36 + 4 x 0.83.
36 + 3.33.
6.33.
c. 3 × 8\(\frac{11}{12}\)
Answer:
3 x 8\(\frac{11}{12}\) = 38.75.
Explanation:
In the above-given question,
given that,
3 x 8(11/12).
3 x 8 + 3 x 11/12.
24 + 3 x 0.916.
36 + 2.75.
38.75.
d. 5 × 20\(\frac{8}{10}\)
Answer:
5 x 20\(\frac{8}{10}\) = 104.
Explanation:
In the above-given question,
given that,
5 x 20(8/10).
5 x 20 + 5 x 8/10.
100 + 5 x 0.8.
100 + 4.
104.
e. 25\(\frac{4}{100}\) × 4
Answer:
25 x 4\(\frac{4}{100}\) = 101.
Explanation:
In the above-given question,
given that,
25 x 4(4/100).
25 x 4 + 25 x 4/100.
100 + 25 x 0.04.
100 + 1.
101.
Question 3.
The distance around the park is 2 \(\frac{5}{10}\) miles. Cecilia ran around the park 3 times. How far did she run?
Answer:
The far she runs = 4 times.
Explanation:
In the above-given question,
given that,
The distance around the park is 2(5/10).
2 x 5/10.
5/10 = 1/2.
2 x 1/2.
2/2 = 1.
Cecilia ran around the park 3 times.
3 + 1 = 4.
Question 4.
Windsor the dog ate 4 \(\frac{3}{4}\) snack bones each day for a week. How many bones did Windsor eat that week?
Answer:
The number of bones did Windsor eat that week = 4.75.
Explanation:
In the above-given question,
given that,
Windsor the dog ate 4(3/4) snack bones each day for a week.
4(3/4).
16 + 3/4.
19/4 = 4.75.
Eureka Math Grade 4 Module 5 Lesson 38 Exit Ticket Answer Key
Question 1.
Fill in the unknown factors.
a. 8 × 5\(\frac{2}{3}\) = (__8__ × 5) + (__8__ × \(\frac{2}{3}\))
Answer:
8 x 5\(\frac{2}{3}\) = 48.33.
Explanation:
In the above-given question,
given that,
8 x 5(2/3).
8 x 5 + 5 x 2/3.
40 + 5 x 0.6.
45 + 3.33.
48.33.
b. 6\(\frac{5}{8}\) × 7
Answer:
6 x 7\(\frac{5}{8}\) = 48.
Explanation:
In the above-given question,
given that,
6 x 7(5/8).
6 x 7 + 6 x 5/8.
42 + 6 x 1.
42 + 6.
48.
Eureka Math Grade 4 Module 5 Lesson 38 Homework Answer Key
Question 1.
Fill in the unknown factors.
a. 8 × 4\(\frac{4}{7}\) = (__8__ × 4) + (__8__ × \(\frac{4}{7}\))
Answer:
8 x 4\(\frac{4}{7}\) = 36.
Explanation:
In the above-given question,
given that,
8 x 4(4/7).
8 x 4 + 8 x 4/7.
32 + 8 x 0.5.
32 + 4.
36.
b. 9 × 7\(\frac{7}{10}\) = (9 × __7__) + (9 × __7/10__)
Answer:
9 x 7\(\frac{7}{10}\) = 69.3.
Explanation:
In the above-given question,
given that,
9 x 7(7/10).
9 x 7 + 9 x 7/10.
63 + 9 x 0.7.
63 + 6.3.
69.3.
Question 2.
Multiply. Use the distributive property.
a. 6 × 8\(\frac{2}{7}\)
Answer:
6 x 8\(\frac{2}{7}\) = 49.2.
Explanation:
In the above-given question,
given that,
6 x 8(2/7).
6 x 8 + 6 x 2/7.
48 + 6 x 0.2.
48 + 1.2.
49.2.
b. 7\(\frac{3}{4}\) × 9
Answer:
7 x 9\(\frac{3}{4}\) = 68.25.
Explanation:
In the above-given question,
given that,
7 x 9(3/4).
7 x 9 + 7 x 3/4.
63 + 7 x 0.75.
63 + 5.25.
68.25.
c. 9 × 8\(\frac{7}{9}\)
Answer:
9 x 8\(\frac{7}{9}\) = 78.3.
Explanation:
In the above-given question,
given that,
9 x 8(7/9).
9 x 8 + 9 x 7/9.
72 + 9 x 0.7.
72 + 6.3.
78.3.
d. 25\(\frac{7}{8}\) × 3
Answer:
25 x 3\(\frac{7}{8}\) = 96.8.
Explanation:
In the above-given question,
given that,
25 x 3(7/8).
25 x 3 + 25 x 7/8.
75 + 25 x 0.875.
75 + 21.875.
96.8.
e. 4 × 20\(\frac{8}{12}\)
Answer:
4 x 20\(\frac{8}{12}\) = 82.4.
Explanation:
In the above-given question,
given that,
4 x 20(8/12).
4 x 20 + 4 x 8/12.
80 + 4 x 0.6.
80 + 2.4.
82.4.
f. 30\(\frac{3}{100}\) × 12
Answer:
30 x 12\(\frac{3}{100}\) = 360.9.
Explanation:
In the above-given question,
given that,
30 x 12(3/100).
30 x 12 + 30 x 3/100.
360 + 30 x 0.03.
360 + 0.9.
360.9.
Question 3.
Brandon is cutting 9 boards for a woodworking project. Each board is 4 \(\frac{5}{8}\) feet long. What is the total length of the boards?
Answer:
The total length of the boards = 41.4 feet.
Explanation:
In the above-given question,
given that,
Brandon is cutting 9 boards for a woodworking project.
Each board is 4(5/8) feet long.
4(5/8) = 32 + 5/8.
37/8 = 4.625
4.6 x 9 = 41.4
Question 4.
Rocky the collie ate 3 \(\frac{1}{4}\) cups of dog food each day for two weeks. How much dog food did Rocky eat in that time?
Answer:
The dog food did Rocky eat in that time = 42.25 cups.
Explanation:
In the above-given question,
given that,
Rocky the collie ate 3(1/4) cups of dog food each day for two weeks.
3(1/4) = 12 + 1/4.
13/4 = 3.25.
3.25 x 13 = 42.25.
Question 5.
At the class party, each student will be given a container filled with 8 \(\frac{5}{8}\) ounces of juice. There are 25 students in the class. How many ounces of juice does the teacher need to buy?
Answer:
The number of ounces of juice does the teacher needs to buy = 215.625 ounces.
Explanation:
In the above-given question,
given that,
At the class party, each student will be given a container filled with 8(5/8) ounces of juice.
There are 25 students in the class.
8(5/8) = 64 + 5/8.
64 + 5 = 69.
69/8 = 8.625.
8.625 x 25 = 215.625.
