Eureka Math Grade 4 Module 3 Lesson 7 Answer Key (2024)

Engage NY Eureka Math 4th Grade Module 3 Lesson 7 Answer Key

Eureka Math Grade 4 Module 3 Lesson 7 Sprint Answer Key

Multiply Multiples of 10, 100, and 1,000

Answer:

Question 1.
3 × 2 =
Answer:
3 X 2 = 6,

Explanation:
Given 3 X 2 = multiplying 3 with 2 we get 6,
3 X 2 = 6.

Question 2.
30 × 2 =
Answer:
30 X 2 =
3 X 10 X 2 = 60,

Explanation:
Given 30 X 2 = writing 30 as 3 X 10 and multiplying with 2
as 3 X 10 X 2 we get 60, So 30 X 2 = 60.

Question 3.
300 × 2 =
Answer:
300 X 2 =
3 X 100 X 2 = 600,

Explanation:
Given 300 X 2 = writing 300 as 3 X 100 and multiplying 2 we get 600,
3 X 100 X 2 = 600, so 300 X 2 = 600.

Question 4.
3,000 × 2 =
Answer:
3,000 X 2 =
3 X 1,000 X 2 = 6,000,

Explanation:
Given 3,000 X 2 = writing 3,000 as 3 X 1,000 and multiplying with 2
we get 6,000 as 3 X 1,000 X 2 = 6,000, So 3,000 X 2 = 6,000.

Question 5.
2 × 3,000 =
Answer:
2 X 3,000 =
2 X 3 X 1,000 = 6,000,

Explanation:
Given 2 X 3,000 = writing 3,000 as 3 X 1,000 and multiplying with
2 we get 6,000,2 X 3 X 1,000 = 6,000, So 2 X 3,000 = 6,000.

Question 6.
2 × 4 =
Answer:
2 X 4 = 8,

Explanation:
Given 2 X 4 = multiplying 2 with 4 we get 8,
2 X 4 = 8.

Question 7.
2 × 40 =
Answer:
2 X 40 =

2 X 4 X 10 = 80,

Explanation:
Given 2 X 40 = writing 40 as 4 X 10 and multiplying with 2 we get 80,
as 2 X 4 x 10 = 80, So 2 X 40 = 80.

Question 8.
2 × 400 =
Answer:
2 X 400 =
2 X 4 X 100 = 800,

Explanation:
Given 2 X 400 = writing 400 as 4 X 100 and multiplying with 2
we get 800 as 2 X 4 X 100 = 800, So 2 X 400 = 800.

Question 9.
2 × 4,000 =
Answer:
2 X 4,000 =
2 X 4 X 1,000 = 8,000,

Explanation:
Given 2 X 4,000 = writing 4,000 as 4 X 1,000 and multiplying with 2,
we get 8,000, as 2 X 4 X 1,000 = 8,000, So 2 X 4,000 = 8,000.

Question 10.
3 × 3 =
Answer:
3 X 3 = 9,

Explanation:
Given 3 X 3 = multiplying 3 with 3 we get 9,
3 X 3 = 9.

Question 11.
30 × 3 =
Answer:
30 X 3 =
3 X 10 X 3 = 90,

Explanation:
Given 30 X 3 = writing 30 as 3 X 10 and multiplying with 3 we get 90
as 3 X 10 X 3 = 90, So 30 X 3 = 90.

Question 12.
300 × 3 =
Answer:
300 X 3 =
3 X 100 X 3 = 900,

Explanation:
Given 300 X 3 = writing 300 as 3 X 100 and multiplying with 3
we get 900 as 3 X 100 X 3 = 900, So 300 X 3 = 900.

Question 13.
3,000 × 3 =
Answer:
3,000 X 3 =
3 X 1,000 X 3 = 9,000,

Explanation:
Given 3,000 X 3 = writing 3,000 as 3 X 1,000 and multiplying with 3 we get 9,000 as 3 X 1,000 X 3 = 9,000, So 3,000 X 3 = 9,000.

Question 14.
4,000 × 3 =
Answer:
4,000 X 3 =
4 X 1,000 X 3 = 12,000,

Explanation:
Given 4,000 X 3 = writing 4,000 as 4 X 1,000 and multiplying
with 3 we get 12,000 so 4 X 1,000 X 3 = 12,000, So 4,000 X 3 = 12,000.

Question 15.
400 × 3 =
Answer:
400 X 3 =
4 X 100 X 3 = 1,200,

Explanation:
Given 400 X 3 = writing 400 as 4 X 100 and multiplying
with 3 we get 1,200 as 4 X 100 X 3 = 1,200, So 400 X 3 = 1,200.

Question 16.
40 × 3 =
Answer:
40 X 3 =
4 X 10 X 3 = 120,

Explanation:
Given 40 X 3 = writing 40 as 4 X 10 multiplying with 3 we get 120
as 4 X 10 X 3 = 120, So 40 X 3 = 120.

Question 17.
5 × 3 =
Answer:
5 X 3 = 15,

Explanation:
Given 5 X 3 = multiplying 5 with 3 we get 15,
5 X 3 = 15.

Question 18.
500 × 3 =
Answer:
500 X 3 =
5 X 100 X 3 = 1,500,

Explanation:
Given 500 X 3 = writing 500 as 5 X 100 and multiplying with 3 we get 1,500 as 5 x 100 X 3 = 1,500, So 500 X 3 = 1,500.

Question 19.
7 × 2 =
Answer:
7 X 2 = 14,

Explanation:
Given 7 X 2 = multiplying 7 with 2 we get 14,
7 X 2 = 14.

Question 20.
70 × 2 =
Answer:
70 X 2 =
7 X 10 X 2 = 140,

Explanation:
Given 70 X 2 = writing 70 as 7 X 10 and multiplying with 2
we get 140 as 7 X 10 X 2 = 140, So 70 X 2 = 140.

Question 21.
4 × 4 =
Answer:
4 X 4 = 16,

Explanation:
Given 4 X 4 = multiplying 4 with 4 we get 16,
4 X 4 = 16.

Question 22.
4,000 × 4 =
Answer:
4,000 X 4 =
4 X 1,000 X 4 = 1,600,

Explanation:
Given 4,000 X 4 = writing 4,000 as 4 X 1,000 and multiplying
with 4 we get 1,600 as 4 X 1,000 X 4 = 1,600, So 4,000 X 4 = 1,600.

Question 23.
7 × 5 =
Answer:
7 X 5 = 35,

Eureka Math Grade 4 Module 3 Lesson 7 Problem Set Answer Key

Question 1.
Represent the following expressions with disks, regrouping as necessary, writing a matching expression, and recording the partial products vertically as shown below.
a. 1 × 43

Answer:

43
X1
3—-1 X 3 ones
+40—-1 X 4 tens
43

Explanation:
Represented the following expression 1 X43 with disks,
regrouped as necessary, wrote a matching expression, and
recorded the partial products vertically as shown above 1 X 43 = 43.

b. 2 × 43

Answer:

Explanation:
Represented the following expression 2 X 43 with disks,
regrouped as necessary, wrote a matching expression, and
recorded the partial products vertically as shown above 2 X 43 = 86.

c. 3 × 43

Answer:

Explanation:
Represented the following expression 3 X 43 with disks,
regrouped as necessary, wrote a matching expression, and
recorded the partial products vertically as shown above 3 X 43 = 129.

d. 4 × 43

Answer:

Explanation:
Represented the following expression 4 X 43 with disks,
regrouped as necessary, wrote a matching expression, and
recorded the partial products vertically as shown above 4 X 43 = 172.

Question 2.
Represent the following expressions with disks,
regrouping as necessary. To the right, record the partial
products vertically.
a. 2 × 36

Answer:

Explanation:
Represented the following expression 2 X 36 with disks,
regrouped as necessary. To the right, record the partial
products vertically as 2 X 36 = 72 as shown above.

b. 3 × 61

Answer:

Explanation:
Represented the following expression 3 X 61 with disks,
regrouped as necessary. To the right, recorded the partial
products vertically as 3 X 61 = 183 as shown above.

c. 4 × 84

Answer:

Explanation:
Represented the following expression 4 X 84 with disks,
regrouped as necessary. To the right, recorded the partial
products vertically as 4 X 84 = 336 as shown above.

Eureka Math Grade 4 Module 3 Lesson 7 Exit Ticket Answer Key

Represent the following expressions with disks, regrouping as necessary. To the right, record the partial products vertically.

Question 1.
6 × 41

Answer:

Explanation:
Represented the following expression 6 X 41 with disks,
regrouped as necessary. To the right, recorded the partial
products vertically as 6 X 41 = 246 as shown above.

Question 2.
7 × 31

Answer:

Explanation:
Represented the following expression 7 X 31 with disks,
regrouped as necessary. To the right, recorded the partial
products vertically as 7 X 31 = 217 as shown above.

Eureka Math Grade 4 Module 3 Lesson 7 Homework Answer Key

Question 1.
Represent the following expressions with disks, regrouping as necessary, writing a matching expression, and recording the partial products vertically.
a. 3 × 24

Answer:

Explanation:
Represented the following expression 3 X 24 with disks,
regrouped as necessary. To the right, recorded the partial
products vertically as 3 X 24 = 72 as shown above.

b. 3 × 42

Answer:

Explanation:
Represented the following expression 3 X 42 with disks,
regrouped as necessary. To the right, recorded the partial
products vertically as 3 X 42 = 126 as shown above.

c. 4 × 34

Answer:

Explanation:
Represented the following expression 4 X 34 with disks,
regrouped as necessary. To the right, recorded the partial
products vertically as 4 X 34 = 136 as shown above.

Question 2.
Represent the following expressions with disks, regrouping as necessary. To the right, record the partial products vertically.
a. 4 × 27

Answer:

Explanation:
Represented the following expression 4 X 27 with disks,
regrouped as necessary. To the right, recorded the partial
products vertically as 4 X 27 = 108 as shown above.

b. 5 × 42

Answer:

Explanation:
Represented the following expression 5 X 42 with disks,
regrouped as necessary. To the right, recorded the partial
products vertically as 5 X 42 = 210 as shown above.

Question 3.
Cindy says she found a shortcut for doing multiplication problems.
When she multiplies 3 × 24, she says, “3 × 4 is 12 ones,
or 1 ten and 2 ones. Then, there’s just 2 tens left in 24,
so add it up, and you get 3 tens and 2 ones.”
Do you think Cindy’s shortcut works?
Explain your thinking in words, and justify your
response using a model or partial products.
Answer:
No, Cindy’s shortcut will not work,

Explanation:
Given Cindy says she found a shortcut for doing multiplication problems.
When she multiplies 3 × 24, she says, “3 × 4 is 12 ones,
or 1 ten and 2 ones. Then, there’s just 2 tens left in 24,
so add it up, and you get 3 tens and 2 ones.”
No I don’t think Cindy’s shortcut works,
because 3 X 24 = 72 not 32,
Explained my thinking in words, and justified
using a model or partial products as show above.

Eureka Math Grade 4 Module 3 Lesson 7 Template Answer Key

_10,000____________
ten thousand value chart
Answer:

Explanation:
A place value chart is diagram that helps us to find and compare the place value of the digits in numbers through millions. The place value of a digit in the place value chart increases by ten times as we shift to the left and decreases by ten times as we shift to the right.
For example for ten thousand place value chart where we write 10,000 as 10 in thousands place, 0 in hundreds place, 0 in tens place and 0 in ones place as shown above.

Eureka Math Grade 4 Module 3 Lesson 7 Answer Key (2024)

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