All the solutions provided in McGraw Hill Math Grade 2 Answer Key PDF Chapter 3 Lesson 4 Add Two-Digit Numbers will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 2 Answer Key Chapter 3 Lesson 4 Add Two-Digit Numbers
Explore and Explain
Teacher Directions: Model this addition story with base-ten blocks. Mr. Kay’s class is selling flowers. The first week they sold 45 flowers The second week they sold 26 flowers. How many flowers did they sell in all? Write the number sentence.
Explanation:
See and Show
Find 18 + 25.
Step 1
Add the ones.
Regroup if needed.
Step 2
Add the tens.
So, 18 + 25 = 43
Use Work Mat 6 and base-ten blocks to add.
Question 1.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
47 + 29 = 76
Question 2.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
12 + 24 = 36
Question 3.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
82 + 14 = 96
Question 4.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
15 + 19 = 34
Question 5.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
24 + 18 = 42
Talk Math What do you do first when you add two-digit numbers?
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
On My Own
Use Work Mat 6 and base-ten blocks to add.
Question 6.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
33 + 18 = 51
Question 7.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 8.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 9.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 10.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 11.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 12.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 13.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 14.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 15.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 16.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 17.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Problem Solving
Question 18.
Tia fed her turtle 30 times in June and 31 times in July. How many times did she feed her turtle?
_____ times
Answer:
61 times
Explanation:
Tia fed her turtle 30 times in June
and 31 times in July.
30 + 31 = 61
61 times that she feed her turtle
Question 19.
There are 25 chairs in one classroom. There are 28 chairs in another classroom. How many chairs are there in all?
____ chairs
Answer:
53 chairs
Explanation:
There are 25 chairs in one classroom.
There are 28 chairs in another classroom.
28 + 25 = 53
53 chairs are there in all.
Question 20.
The pet store has 14 small lizards. There are also 16 large lizards. How many lizards are at the pet store in all?
____ lizards
Answer:
30 lizards
Explanation:
The pet store has 14 small lizards.
There are also 16 large lizards.
14 + 16 = 30
30 lizards are at the pet store in all.
Write Math
How is adding 21 + 9 different than adding 21 + 19?
Explanation:
21 + 9 = 30
21 + 19 = 40
McGraw Hill My Math Grade 2 Chapter 3 Lesson 4 My Homework Answer Key
Practice
Add.
Question 1.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 2.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 3.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 4.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 5.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 6.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Add.
Question 7.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 8.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 9.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 10.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 11.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 12.
Answer:
Explanation:
In two digit addition we have to add the ones first
If the sum is more than the 9 then we have to regroup as tens
Question 13.
Brad’s family picks 22 pounds of cherries. Seth’s family picks 43 pounds. How many pounds of cherries did they pick in all?
____ pounds
Answer:
65 pounds
Explanation:
Brad’s family picks 22 pounds of cherries.
Seth’s family picks 43 pounds.
22 + 43 = 65
65 pounds of cherries that they pick in all.
Test Practice
Question 14.
46 people came to the museum early. 39 more people came late. How many people came to the museum in all?
(A) 86
(B) 85
(C) 39
(D) 7
Answer:
B
Explanation:
46 people came to the museum early.
39 more people came late.
46 + 39 = 85
85 people came to the museum in all.
Math at Home Take two 2-digit numbers from your phone number and have your child add them. Example: 555 – 1234; 12 + 34 = 46
Explanation:
78 + 39 = 117
55 + 5 = 60