Eureka Math Grade 4 Module 1 Lesson 2 Answer Key

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

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

Question 1.
As you did during the lesson, label and represent the product or quotient by drawing disks on the place value chart.
a. 10 × 2 thousands = _________ thousands = ______________________________
Eureka Math Grade 4 Module 1 Lesson 2 Problem Set Answer Key 1
Answer:
Engage-NY-Eureka-Math-4th-Grade-Module-1-Lesson-2-Answer-Key-Eureka-Math-Grade-4-Module-1-Lesson-2-Problem-Set-Answer-Key-Question-1-a
b. 10 × 3 ten thousands = _________ ten thousands = ______________________________
Eureka Math Grade 4 Module 1 Lesson 2 Problem Set Answer Key 2

Answer:
Engage-NY-Eureka-Math-4th-Grade-Module-1-Lesson-2-Answer-Key-Eureka-Math-Grade-4-Module-1-Lesson-2-Problem-Set-Answer-Key-Question-1-b

c. 4 thousands ÷ 10 = __________ hundreds ÷ 10 = _____________________________
Eureka Math Grade 4 Module 1 Lesson 2 Problem Set Answer Key 3

Answer:
Engage-NY-Eureka-Math-4th-Grade-Module-1-Lesson-2-Answer-Key-Eureka-Math-Grade-4-Module-1-Lesson-2-Problem-Set-Answer-Key-Question-1-c

Question 2.
Solve for each expression by writing the solution in unit form and in standard form.

Expression Unit form Standard Form
10 × 6 tens
7 hundreds × 10
3 thousands ÷ 10
6 ten thousands ÷ 10
10 × 4 thousands

Answer:

Expression Unit form Standard Form
10 × 6 tens 60 tens 600
7 hundreds × 10                             70 hundreds                 7000
3 thousands ÷ 10                            3 hundreds                  300
6 ten thousands ÷ 10                            6 thousands                 6000
10 × 4 thousands 40 thousands or 4 ten thousands 40,000

Question 3.
Solve for each expression by writing the solution in unit form and in standard form.

Expression

Unit form Standard Form

(4 tens 3 ones) × 10

(2 hundreds 3 tens) × 10

(7 thousands 8 hundreds) × 10

(6 thousands 4 tens) ÷ 10

(4 ten thousands 3 tens) ÷ 10

Answer:

Expression

Unit form Standard Form

(4 tens 3 ones) × 10
43 ONES

430 Ones 430

(2 hundreds 3 tens) × 10
2 thousand 3 hundred

2 thousand 3 hundred 2300

(7 thousands 8 hundreds) × 10
7 ten thousands

         7 ten thousands 8 thousand           78000

(6 thousands 4 tens) ÷ 10

              6 hundreds 4 ones           604

(4 ten thousands 3 tens) ÷ 10

            4 thousands 3 ones           4003

Question 4.
Explain how you solved 10 × 4 thousands. Use a place value chart to support your explanation.
Answer:
10 × 4 thousands = 4 ten thousands
Engage-NY-Eureka-Math-4th-Grade-Module-1-Lesson-2-Answer-Key-Eureka-Math-Grade-4-Module-1-Lesson-2-Problem-Set-Answer-Key-Question-4
Explanation:
When multiplying with 10 the number moves right side on the place value chat.
10 times of 4 thousands is 40 thousand = 4 ten thousands.

Question 5.
Explain how you solved (4 ten thousands 3 tens) ÷ 10. Use a place value chart to support your explanation.
Answer:
(4 ten thousands 3 tens) ÷ 10
4 thousands 3 ones
Engage-NY-Eureka-Math-4th-Grade-Module-1-Lesson-2-Answer-Key-Eureka-Math-Grade-4-Module-1-Lesson-2-Problem-Set-Answer-Key-Question-5
Explanation:
when Dividing with 10 the number value moves towards the left side in the place value chart.
4 ten thousands 3 tens ÷ 10 = 4 thousands 3 ones = 4003.

Question 6.
Jacob saved 2 thousand dollar bills, 4 hundred dollar bills, and 6 ten dollar bills to buy a car. The car costs 10 times as much as he has saved. How much does the car cost?
Answer:
Total money saved by Jacob to buy a car is = 2 thousand 4 hundred 6 ten dollar
The cost of the car is 10 times as much as he saved =
2 thousand 4 hundred 6 ten dollar × 10 = 2 ten thousand 4 thousand 6 hundred
= 24,600 dollars.
The total cost of the car = $24600.

Question 7.
Last year the apple orchard experienced a drought and did not produce many apples. But this year, the apple orchard produced 45 thousand Granny Smith apples and 9 hundred Red Delicious apples, which is 10 times as many apples as last year. How many apples did the orchard produce last year?
Answer:
This year
Number of apple orchard produced are = 45 thousand Granny smith apples and 9 hundred Red Delicious apples.
This year production is 10 times as many apples as last year.
Number of apples produced Last year are = this year production ÷ 10
= 45 thousand 9 hundred ÷ 10
= 45 hundred 9 ten
= 4590 apples.
Last year production by apple orchard are 4590 apples.

Question 8.
Planet Ruba has a population of 1 million aliens. Planet Zamba has 1 hundred thousand aliens.
a. How many more aliens does Planet Ruba have than Planet Zamba?
b. Write a sentence to compare the populations for each planet using the words 10 times as many.
Answer:
Total population of aliens on Planet Ruba = 1 million =1,000,000 = 10 lakhs
Total population of aliens on Planet Zamba = 1 hundred thousand = 100,000= 1 lakh
a: difference of population of aliens does Planet Ruba have than Planet Zamba =
10,00,000 – 1,00,000 = 9,00,000 = 9 lakhs.
9 lakhs many more aliens does Planet Ruba have than Planet Zamba.
b:
Aliens population on Planet Ruba is 10 times more than planet Zamba = 100,000 × 10
Aliens population on Planet Zamba is 10 times less than Planet Ruba = 10,00,000 ÷ 10

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

Question 1.
Fill in the blank to make a true number sentence. Use standard form.
a. (4 ten thousands 6 hundreds) × 10 = ________________________
b. (8 thousands 2 tens) ÷ 10 = _________________________
Answer:
a. (4 ten thousands 6 hundreds) × 10 = __4 lakhs 6 thousand = 4,06,000_
b. (8 thousands 2 tens) ÷ 10 = ___8 hundreds 2 ones__= __802__________________

Question 2.
The Carson family saved up $39,580 for a new home. The cost of their dream home is 10 times as much as they have saved. How much does their dream home cost?
Answer:
Total money saved by the Carson family for a new home = $39,580.
$39,580 = 3 ten thousand 9 thousand 5 hundred 8 tens
The cost of their dream home is 10 times as much as they saved = $39,580 × 10
= $3,95,800= 3 lakh 9 ten thousand 5 thousand 8 hundred.
The cost of their dream home is $3,95,800= 3 lakh 9 ten thousand 5 thousand 8 hundred.

Eureka Math Grade 4 Module 1 Lesson 2 Homework Answer Key

Question 1.
As you did during the lesson, label and represent the product or quotient by drawing disks on the place value chart.
a. 10 × 4 thousands = _________ thousands = ______________________________
Eureka Math 4th Grade Module 1 Lesson 2 Homework Answer Key 5
Answer:
Engage-NY-Eureka-Math-4th-Grade-Module-1-Lesson-2-Answer-Key-Eureka-Math-Grade-4-Module-1-Lesson-2-Homework-Answer-Key-Question-1-a
b. 4 thousands ÷ 10 = __________ hundreds ÷ 10 = _____________________________
Eureka Math 4th Grade Module 1 Lesson 2 Homework Answer Key 6
Answer:
Engage-NY-Eureka-Math-4th-Grade-Module-1-Lesson-2-Answer-Key-Eureka-Math-Grade-4-Module-1-Lesson-2-Homework-Answer-Key-Question-1-b

Question 2.
Solve for each expression by writing the solution in unit form and in standard form.

Expression

Unit Form

Standard Form

10 × 3 tens

5 hundreds × 10

9 ten thousands ÷ 10

10 × 7 thousands

Answer:

Expression

Unit Form

Standard Form

10 × 3 tens

30 tens 300

5 hundreds × 10

       50 hundreds or 5 thousands              5,000

9 ten thousands ÷ 10

                    9 thousands              9,000

10 × 7 thousands

      70 thousands or 7 ten thousands             70,000

Question 3.
Solve for each expression by writing the solution in unit form and in standard form.

Expression

Unit Form

Standard Form

(2 tens 1 one) × 10

(5 hundreds 5 tens) × 10

(2 thousands 7 tens) ÷ 10

(4 ten thousands 8 hundreds) ÷ 10

Answer:

Expression

Unit Form

Standard Form

(2 tens 1 one) × 10

2 hundreds 1 tens 201

(5 hundreds 5 tens) × 10

5 thousands 5 hundreds 5,500

(2 thousands 7 tens) ÷ 10

            2 hundreds 7 ones               207

(4 ten thousands 8 hundreds) ÷ 10

          4 thousands 8 tens              4,080

Question 4.
a. Emily collected $950 selling Girl Scout cookies all day Saturday. Emily’s troop collected 10 times as much as she did. How much money did Emily’s troop raise?
b. On Saturday, Emily made 10 times as much as on Monday. How much money did Emily collect on Monday?
Answer:
a:
Total money collected by Emily by selling Scout cookies =$950.
But
Emily’s troop collects 10 times as much as Emily did = 10 × $950
Total money raised by Emily’s troop = 10 × $950 = $9,500. = 9 thousand 5 hundred dollars.
b.
Money collected  by Emily on Saturday = $950
On Saturday, Emily made 10 times as much as on Monday
On Monday  the money collected by Emily =$950 ÷ 10
= 9 hundred 5 tens ÷ 10
= 9 tens 5 ones
=$95.
Money collected by Emily on Monday is $95.

Eureka Math Grade 4 Module 1 Answer Key

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