Engage NY Eureka Math 3rd Grade Module 1 Lesson 19 Answer Key

Eureka Math Grade 3 Module 1 Lesson 19 Problem Set Answer Key

Question 1.
Label the array. Then, fill in the blanks to make true number sentences.
a. 36 Ã· 3 = 12__

a. 36 Ã· 3 = 12,

Explanation:
36 Ã· 3 can be written as (30 Ã· 3) + (6 Ã· 3) = 10 + 2 = 12 or
36 Ã· 3 = 12. Filled the blanks to make true number sentences.

b. 25 Ã· 5 = _5_

b. 25 Ã· 5 = 5,

Explanation:
25 Ã· 5 can be written as (20 Ã· 5) + (5 Ã· 5) = 4Â  + 1 = 5 or
25 Ã· 5 = 5. Filled the blanks to make true number sentences.

c. 28 Ã· 4 = __7___

28 Ã· 4 =7,

Explanation:
28 Ã· 4 can be written as (20 Ã· 4) + (8 Ã· 4) = 5Â  + 2 = 7 or
28 Ã· 4 = 7. Filled the blanks to make true number sentences.

d. 32 Ã· 4 = _8_

32 Ã· 4 = 8,

Explanation:
32 Ã· 4 can be written as (20 Ã· 4) + (12 Ã· 4) = 5Â  + 3 = 8 or
32 Ã· 4 = 8. Filled the blanks to make true number sentences.

Question 2.
Match the equal expressions.

Matched the equal expressions as

Explanation:
Matching the equal expressions as
24 Ã· 2 = (20 Ã· 2) + (4 Ã·Â  2),
24 is written as (20 + 4) Ã· 2.
36 Ã· 3 = (30 Ã· 3) + (6 Ã· 3),
36 is written as (30 + 6) Ã· 3.
39 Ã·Â  3 = (30 Ã·Â  3) + (9 Ã·Â  3),
39 is written as (30 + 9) Ã· 3.
26 Ã· 2 = ( 20 Ã· 2) + (6 Ã· 2),
26 is written as (20 + 6) Ã· 2.

Question 3.
Nell draws the array below to find the answer to 24 Ã· 2. Explain Nellâ€™s strategy.

Nell’s strategy is 24 Ã· 2 = (12 Ã· 2) + (12 Ã· 2),
6 + 6 = 12, So, 24 Ã· 2 = 12,

Explanation:
To find answer for 24 Ã· 2 Nell draws an array his strategy is he divided 24 as 12 + 12 then has divided with 2, So equation for Nell’s drawing is
24 Ã· 2 = (12 Ã· 2) + (12 Ã· 2), 6 + 6 = 12.
Therefore 24 Ã· 2 = 12.

Eureka Math Grade 3 Module 1 Lesson 19 Exit Ticket Answer Key

Complete the equations below to solve 22 Ã· 2 = __11___.

22 Ã· 2 = 11,

Explanation:

We solve 22 Ã· 2 as below first we write 22 as 20 + 2
and divide by 2,
(20 + 2) Ã· 2 = (20 Ã· 2) +(2 Ã· 2) = 10 + 1 = 11,
So 22 Ã· 2 = 11.

Question 1.
Label the array. Then, fill in the blanks to make true number sentences.
a. 18 Ã· 3 = _6_

18 Ã· 3 = 6,

Explanation:
Labelled the array, filled the blanks to make true number sentences as
18 Ã· 3 = ( 9 Ã· 3) + (9 Ã· 3) = 3 + 3 = 6 or 18 Ã· 3 = 6.
We wrote 18 Ã· 3 as (9 + 9) Ã· 3.

b. 21 Ã· 3 = _7_

21 Ã· 3 = 7,

Explanation:
Labelled the array, filled the blanks to make true number sentences as
21Ã· 3 = (15 Ã· 3) + (6 Ã· 3) = 5 + 2 = 7 or 21 Ã· 3 = 7.
We wrote 21 Ã· 3 as (15 + 6) Ã· 3.

c. 24 Ã· 4 = _6_

24 Ã· 4 = 6,

Explanation:
Labelled the array, filled the blanks to make true number sentences as
24 Ã· 4 = (20Ã· 4) + (4 Ã· 4) = 5 + 1 = 6 or 24Ã· 4 = 6.
We wrote 24 Ã· 4 as (20 + 4) Ã· 4.

d. 36 Ã· 4 = _9_

36 Ã· 4 = 9,

Explanation:
Labelled the array, filled the blanks to make
true number sentences as 36 Ã· 4 = (20Ã· 4) + (16 Ã· 4) =
5 + 4 = 9 or 36Ã· 4 = 9.
We wrote 36 Ã· 4 as (20 + 16) Ã· 4.

Question 2.
Match equal expressions.

Matched the equal expressions as

Explanation:
Matching the equal expressions as
28 Ã· 2 = (20 Ã· 2) + (8 Ã·Â  2),
28 is written as (20 + 8) Ã· 2.
33 Ã· 3 = (30 Ã· 3) + (3 Ã· 3),
33 is written as (30 + 3) Ã· 3.
36 Ã·Â  3 = (30 Ã·Â  3) + (6 Ã·Â  3),
36 is written as (30 + 6) Ã· 3.
26 Ã· 2 = ( 20 Ã· 2) + (6 Ã· 2),
26 is written as (20 + 6) Ã· 2.

Question 3.
Alex draws the array below to find the answer to 35 Ã· 5. Explain Alexâ€™s strategy.