Eureka Grade 3 ensures students with the learning targets and success criteria. The Diverse opportunities will develop problem-solving skills among the primary school kids practicing Bigideas Math Grade 3 Solutions. Eureka Textbook Grade 3 answers help Students Master the subject on Consistent practice.
Engage NY Eureka Math 3rd Grade Module 3 Lesson 20 Answer Key
Grade 3 Eureka Math Answer Key is provided by subject experts as per the Common Core curriculum. Grade 3 Eureka Math Solutions provided educates the primary school Kids on all Math concepts of the chapter efficiently. Eureka Math Grade 3 Textbook Answers makes it easy for kids to Grasp the Concepts as well as solve any problem from chapter Tests, Practice Tests, Performance tests, cumulative practice, etc.
Eureka Math Grade 3 Module 3 Lesson 20 Problem Set Answer Key
Question 1.
Use the chart to complete the equations. Then, solve. The first one has been done for you.
a.
(2 × 4) × 10
= (8 ones) × 10
= ___80____
Answer:
8 x 10 = 80.
Explanation:
In the above-given question,
given that,
(2 x 4) x 10.
(8 ones) x 10.
80.
b.
2 × (4 × 10)
= 2 × (4 tens)
= ___80____
Answer:
2 x 4 tens = 80.
Explanation:
In the above-given question,
given that,
2 x (4 x 10).
2 x (4 tens).
80.
c.
(3 × 5) × 10
= ( __15___ ones ) × 10
= ___150____
Answer:
15 x 10 = 150.
Explanation:
In the above-given question,
given that,
(3 x 5) x 10.
(15 ones) x 10.
150.
d.
3 × (5 × 10)
= 3 × ( ___50___ tens)
= ___150____
Answer:
3 x 5 tens = 150.
Explanation:
In the above-given question,
given that,
3 x (5 x 10).
3 x (5 tens).
150.
Question 2.
Place parentheses in the equations to find the related fact. Then, solve. The first one has been done for you.
Answer:
2 x 20 = 40.
2 x 30 = 60.
3 x 30 = 90.
2 x 50 = 100.
Explanation:
In the above-given figure,
given that,
2 x 20 = 2 x (2 x 10).
(2 x 2) x 10.
4 x 10 = 40.
2 x 30 = 2 x (3 x 10).
(2 x 3) x 10.
6 x 10 = 60.
3 x 30 = 3 x (3 x 10).
(3 x 3) x 10.
9 x 10 = 90.
2 x 50 = 2 x (5 x 10).
(2 x 5) x 10.
10 x 10 = 100.
Question 3.
Gabriella solves 20 × 4 by thinking about 10 × 8. Explain her strategy.
Answer:
20 x 4 = 80.
Explanation:
In the above-given question,
given that,
Gabriella solves 20 x 4 = 80.
This can also write it as 10 x 8 = 80.
20 x 4 = (2 x 10) x 4.
2 x (10 x 4).
2 x 40 = 80.
Eureka Math Grade 3 Module 3 Lesson 20 Exit Ticket Answer Key
Question 1.
Place parentheses in the equations to find the related fact. Then, solve.
a. 4 × 20 = 4 × 2 × 10
= 4 × 2 × 10
= __8____ × 10
= __80____
Answer:
4 x 20 = 80.
Explanation:
In the above-given question,
given that,
4 x 20 = 4 x (2 x 10).
(4 x 2) x 10.
8 x 10.
80
b. 3 × 30 = 3 × 3 × 10
= 3 × 3 × 10
= __9___ × 10
Answer:
3 x 30 = 90.
Explanation:
In the above-given question,
given that,
3 x 30 = 3 x (3 x 10).
(3 x 3) x 10.
9 x 10.
90
Question 2.
Jamila solves 20 × 5 by thinking about 10 tens. Explain her strategy.
Answer:
20 x 5 = 100.
Explanation:
In the above-given question,
given that,
Jamila solves 20 x 5 by thinking about 10 tens.
20 x 5 = (2 x 10) x 5.
2 x (10 x 5).
2 x 50 = 100.
10 x 10 = 100.
Eureka Math Grade 3 Module 3 Lesson 20 Homework Answer Key
Question 1.
Use the chart to complete the equations. Then, solve.
a.
(2 × 5) × 10
= (10 ones) × 10
= ___100____
Answer:
8 x 10 = 80.
Explanation:
In the above-given question,
given that,
(2 x 5) x 10.
(10 ones) x 10.
100.
b.
2 × (5 × 10)
= 2 × (5 tens)
= ___100____
Answer:
2 x 5 tens = 100.
Explanation:
In the above-given question,
given that,
2 x (5 x 10).
2 x (5 tens).
100.
c.
(4 × 5) × 10
= (__20___ ones) × 10
= ___200____
Answer:
20 x 10 = 200.
Explanation:
In the above-given question,
given that,
(4 x 5) x 10.
(20 ones) x 10.
200.
d.
4 × (5 × 10)
= 4 × (__5__ tens)
= ___200____
Answer:
4 x 5 tens = 200.
Explanation:
In the above-given question,
given that,
4 x (5 x 10).
4 x (5 tens).
200.
Question 2.
Solve, Place parentheses in (c) and (d) as needed to find the related fact.
Answer:
3 x 20 = 60.
3 x 30 = 90.
3 x 40 = 120.
3 x 50 = 150.
Explanation:
In the above-given figure,
given that,
3 x 20 = 3 x (2 x 10).
(3 x 2) x 10.
6 x 10 = 60.
3 x 30 = 3 x (3 x 10).
(3 x 3) x 10.
9 x 10 = 90.
3 x 40 = 3 x (4 x 10).
(3 x 4) x 10.
12 x 10 = 120.
3 x 50 = 3 x (5 x 10).
(3 x 5) x 10.
15 x 10 = 150.
Question 3.
Danny solves 5 × 20 by thinking about 10 × 10. Explain his strategy.
Answer:
5 x 20 = 100.
Explanation:
In the above-given question,
given that,
Danny solves 5 x 20 = 100.
5 x 20 = 5 x ( 2 x 10).
(5 x 2) x 10.
10 x 10 = 100.