All the solutions provided in McGraw Hill Math Grade 2 Answer Key PDF Chapter 1 Lesson 3 Doubles and Near Doubles will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 2 Answer Key Chapter 1 Lesson 3 Doubles and Near Doubles
Explore and Explain
Teacher Directions: Look at each cube train. Draw the same train beside it. Write the doubles fact shown by each pair of cube trains.
Explanation:
See and Show
Two addends that are the same are called doubles. Use doubles facts to find the sum.
Two addends that are almost a doubles fact are called near doubles. Use near doubles facts to find the sum.
Add. Circle the doubles facts.
Question 1.
4 + 4 = ____
Answer:
8
Explanation:
The sum of 4 and 4 is 8
Two addends that are the same are called doubles.
4 + 4 = 8
Question 2.
3 + 4 = _____
Answer:
7
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 3 and 4 is 7
3 + 4 = 7
Question 3.
____ = 7 + 7
Answer:
14
Explanation:
The sum of 7 and 7 is 14
Two addends that are the same are called doubles.
7 + 7 = 14
Question 4.
____ = 9 + 9
Answer:
18
Explanation:
The sum of 9 and 9 is 18
Two addends that are the same are called doubles.
9 + 9 = 18
Question 5.
7 + 8 = ___
Answer:
15
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 7 and 8 is 15
7 + 8 = 15
Question 6.
____ = 8 + 8
Answer:
16
Explanation:
The sum of 8 and 8 is 16
Two addends that are the same are called doubles.
8 + 8 = 15
Talk Math How can you use doubles and near doubles to remember 5 + 5? 5 + 6?
Two addends that are the same are called doubles.
Two addends that are almost a doubles fact are called near doubles.
On My Own
Add. Circle the doubles facts.
Question 7.
0 + 0 = ____
Answer:
0
Explanation:
The sum of 0 and 0 is 0
Two addends that are the same are called doubles.
0 + 0 = 0
Question 8.
7 + 6 = ____
Answer:
13
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 7 and 6 is 13
7 + 6 = 13
Question 9.
2 + 8 = ____
Answer:
10
Explanation:
The sum of 2 and 8 is 10
2 + 8 = 10
Question 10.
8 + 9 = ___
Answer:
17
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 8 and 9 is 17
8 + 9 = 17
Question 11.
3 + 2 = ___
Answer:
5
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 3 and 2 is 5
3 + 2 = 5
Question 12.
2 + 9 = ____
Answer:
11
Explanation:
The sum of 2 and 9 is 11
2 + 9 = 11
Question 13.
Answer:
Explanation:
The sum of 2 and 2 is 4
2 + 2 = 4
Two addends that are the same are called doubles.
Question 14.
Answer:
Explanation:
The sum of 7 and 7 is 14
Two addends that are the same are called doubles.
7 + 7 = 14
Question 15.
Answer:
Explanation:
The sum of 1 and 1 is 2
Two addends that are the same are called doubles.
1 + 1 = 2
Question 16.
Answer:
Explanation:
The sum of 9 and 3 is 12
9 + 3 = 12
Add. Circle the near doubles facts.
Question 17.
Answer:
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 4 and 3 is 7
4 + 3 = 7
Question 18.
Answer:
Explanation:
The sum of 2 and 4 is 6
2 + 4 = 6
Question 19.
Answer:
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 7 and 8 is 15
7 + 8 = 15
Question 20.
Answer:
Explanation:
The sum of 3 and 8 is 11
3 + 8 = 11
Question 21.
Answer:
Explanation:
The sum of 2 and 7 is 9
2 + 7 = 9
Question 22.
Answer:
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 9 and 8 is 17
9 + 8 = 17
Question 23.
Answer:
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 3 and 5 is 8
3 + 5 = 8
Question 24.
Answer:
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 4 and 5 is 9
4 + 5 = 9
Problem Solving
Question 25.
Mr. Bean sells 5 melons to Ed. He sells the same number of melons to Jose. How many melons did Mr. Bean sell in all?
___ melons
Answer:
10 melons
Explanation:
Mr. Bean sells 5 melons to Ed.
He sells the same number of melons to Jose.
5 + 5 = 10
10 melons that Mr. Bean sell in all.
Question 26.
Andrea has 3 dogs. Juanita has the same number of dogs. How many dogs do they have in all?
Answer:
6 dogs
Explanation:
Andrea has 3 dogs.
Juanita has the same number of dogs.
3 + 3 = 6
6 dogs that they have in all.
Question 27.
Anthony has 3 lizards. His cousin has one more lizard than he does. How many lizards do Anthony and his cousin have in all?
____ lizards
Answer:
7 lizards
Explanation:
Anthony has 3 lizards.
His cousin has one more lizard than he does.
3 + 4 = 7
7 lizards that Anthony and his cousin have in all.
Write Math How does knowing doubles facts help you with solving near doubles facts?
____________________________
____________________________
____________________________
By double facts we can add easily
and for double plus we for double we have to add 1
McGraw Hill My Math Grade 2 Chapter 1 Lesson 3 My Homework Answer Key
Practice
Add. Circle the doubles facts.
Question 1.
5 + 7 = ___
Answer:
12
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 5 and 7 is 12
5 + 7 = 12
Question 2.
2 + 3 = ____
Answer:
5
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 2 and 3 is 5
2 + 3 = 5
Question 3.
5 + 5 = ____
Answer:
10
Explanation:
The sum of 5 and 5 is 10
Two addends that are the same are called doubles.
5 + 5 = 10
Question 4.
8 + 7 = ____
Answer:
15
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 8 and 7 is 15
8 + 7 = 15
Question 5.
Answer:
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 4 and 2 is 6
4 + 2 = 6
Question 6.
Answer:
Explanation:
The sum of 4 and 4 is 8
Two addends that are the same are called doubles.
4 + 4 = 8
Question 7.
Answer:
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 6 and 7 is 13
6 + 7 = 13
Question 8.
Answer:
Explanation:
The sum of 8 and 8 is 16
Two addends that are the same are called doubles.
8 + 8 = 16
Add. Circle the near doubles facts.
Question 9.
2 + 9 = ____
Answer:
11
Explanation:
The sum of 2 and 9 is 11
2 + 9 = 11
Question 10.
12 + 3 = ___
Answer:
15
Explanation:
The sum of 12 and 3 is 15
12 + 3 = 15
Question 11.
4 + 5 = ___
Answer:
9
Explanation:
The sum of 4 and 5 is 9
4 + 5 = 9
Question 12.
8 + 8 = ___
Answer:
16
Explanation:
The sum of 8 and 8 is 16
Two addends that are the same are called doubles.
8 + 8 = 16
Question 13.
9 + 8 = ___
Answer:
17
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 9 and 8 is 17
9 + 8 = 17
Question 14.
7 + 6 = ____
Answer:
13
Explanation:
Two addends that are almost a doubles fact are called near doubles.
The sum of 7 and 6 is 13
7 + 6 = 13
Solve. Then write the doubles fact that helped you solve the problem.
Question 15.
4 frogs are sitting beside a pond. 5 dragon flies land beside them. How many animals are there altogether?
____ + ____ = ___ animals
____ + ____ = ____
Answer:
9 animals.
Explanation:
4 frogs are sitting beside a pond.
5 dragon flies land beside them.
4 + 5 = 9
9 animals are there altogether.
Vocabulary Check
Draw lines to match.
Explanation:
Two addends that are almost a doubles fact are called near doubles.
Two addends that are the same are called doubles.
Math at Home Have your child use objects to make doubles and tell the addition fact.