We included HMH Into Math Grade 1 Answer Key PDF Module 1 Lesson 2 Count On to make students experts in learning maths.
HMH Into Math Grade 1 Module 1 Lesson 2 Answer Key Count On
I Can Count on to add.
Spark Your Learning
Ella has 3 fish in a tank. Her friend gives her 8 more fish. How many fish does she have now?
How can you count to solve the problem?
Answer:
Explanation:
Ella has 3 fish in a tank
Her friend gives her 8 more fish
8 + 3 = 11
So, Ella has 11 fishes now.
Read the problem to children. Have pairs choose a tool and work together to show and solve the problem.
Build Understanding
Evan picks 9 red apples and 3 green apples.
How many apples does he pick?
A. How can you count on to solve the problem?
Answer:
B. How can you write an equation to model the problem?
___ + ___ = ___
Explanation:
Evan picks 9 red apples and 3 green apples
9 + 3 = 12
Therefore, Evan picked 12 apples in all.
Connect to Vocabulary
count on
4 + 2 = 6
Say 4.
Count on 2 more.
5, 6
C. Evan picks __ apples
Turn and Talk How is counting on similar to counting all? How is it different?
Jade reads 2 books about cats and 5 books about dogs. How many books does she read?
A. How can you count on to solve the problem?
Answer:
B. How can you write an equation to model the problem?
___ + ___ = ___
C. Jade reads ___ books.
Explanation:
Jade reads 2 books about cats and 5 books about dogs
2 + 5 = 7
So, jade reads 7 books.
Turn and Talk Is it faster to start with 2 and count on 5 more or start with 5 on count on 2 more? Explain.
Answer:
It is faster to start with 5 and count on 2 more as 2 is small number than 5.
Step It Out
1. Add 7 + 3. Use the number line to count on.
A. What number do you start on? ____
B. How many jumps do you make? ____
C. Write the sum.
7 + 3 = ____
Explanation:
I started on 7
I made 3 jumps
7 + 3 = 10
So, The sum is 10.
Check Understanding Math Board
Question 1.
Nate has 5 toy trucks. Ali has 2 toy trucks. How many toy trucks do they have?
Count on to add.
Draw the jumps on the number line.
5 + 2 = ___
They have ___ trucks.
Answer:
Explanation:
Nate has 5 toy trucks
Ali has 2 toy trucks
I counted on to add
5 + 2 = 7
They have 7 trucks.
Count on to add.
Question 2.
2 + 8 = ____
Answer:
Explanation:
2 + 8 = 10
The sum of 2 and 8 is 10.
Question 3.
3 + 9 = ___
Answer:
Explanation:
3 + 9 = 12
The sum of 3 and 9 is 12.
Question 4.
8 + 1 = ___
Answer:
Explanation:
8 + 1= 9
The sum of 8 and 1 is 9.
On Your Own
Count on to add.
Question 5.
Construct Arguments Tom counts on to add 3 + 8. Explain why he should start at 8.
Answer:
He should start at 8 as the number is big and then we need to count on 3
If we take 3 and count on 8 it would take more time.
Question 6.
Model with Mathematics Henry sees 9 birds. Then he sees 2 more birds. Write an equation to show how many birds he sees.
___ + ___ = ____
Henry sees ___ birds.
Answer:
9 + 2 = 11
Henry sees 11 birds
Explanation:
Henry sees 9 birds
Then he sees 2 more birds
9 + 2 = 11
So, Henry sees 11 birds.
Question 7.
Use Tools Ty has 3 hats. His brother gives him 5 more hats. How many hats does Ty have now? Draw jumps on the number line to count on.
Ty has ___ hats.
Answer:
Explanation:
Ty has 3 hats
His brother gives him 5 more hats
I drew 3 jumps on the number line
5 + 3 = 8
Therefore, Ty has 8 hats.
Question 8.
9 + 3 = ___
Answer:
Explanation:
9 + 3 = 12
The sum of 9 and 3 is 12.
Question 9.
5 + 0 = __
Answer:
5
Explanation:
As 0 has no value if we add 0 to 5
The answer is 5
5 + 0 = 5.
Question 10.
1 + 7 = ___
Answer:
Explanation:
I made 1 jump after 7, the number is 8
1 + 7 = 8
The sum of 1 and 7 is 8.
On Your Own
Count on to add.
Question 11.
Raymond has 6 toy cars at home. He has 1 toy car at school. How many toy cars does he have?
Raymond has ___ toy cars.
Answer:
7 toy cars
Explanation:
Raymond has 6 toy cars at home
He has 1 toy car at school
Count forward by 1’s 1 time
6 after 7
So, 6 + 1 = 7
Therefore, Raymond has 7 toy cars.
Question 12.
Construct Arguments Isla finds 6 worms. James finds 2 worms. How many worms do they find?
Explain how you can count on to solve.
Answer:
8 worms
Explanation:
Isla finds 6 worms
James finds 2 worms
Count forward by 1’s 2 times
6 after 7, 8
So, 6 + 2 = 8
Therefore, they found 8 worms.
Add. Write the sum.
Question 13.
__ = 8 + 3
Answer:
Explanation:
8 + 3 = 11
The sum of 8 and 3 is 11.
Question 14.
___ = 2 + 7
Answer:
Explanation:
2 + 7 = 9
The sum of 2 and 7 is 9.
Question 15.
___ = 1 + 9
Answer:
Explanation:
1 + 9 = 10
The sum of 1 and 9 is 10.
I’m in a Learning Mindset!
What do I do when I do not know what to do?
____________________
____________________
____________________