We included HMH Into Math Grade 2 Answer Key PDF Module 11 Lesson 1 Decompose Ones to Add to make students experts in learning maths.
HMH Into Math Grade 2 Module 11 Lesson 1 Answer Key Decompose Ones to Add
I Can break apart an addend to make a new group of ten to
solve addition equations.
Spark Your Learning
How can you break apart a number to find how many marbles Jennifer has?
Jennifer has ____21_____ marbles
Read the following: Jennifer has 15 blue marbles and 6 green marbles. How many marbles does she have? Make a concrete model or draw to show the problem. Then break apart an addend to solve the problem.
Answer:
Jennifer has 21 marbles,
Explanation:
Given Jennifer has 15 blue marbles and 6 green marbles,
15 marbles can be written as 1 ten and 5 ones blue marbles
and 6 ones green marbles if we add 5 ones and 6 ones we get
1 more ten and 1 ones in total 2 tens and 1 one,
so Jennifer has 21 marbles.
Build Understanding
Question 1.
Franco plays with 46 toy cars. Martin plays with 8 toy cars.
How many toy cars do they play with?
A. How can you make a new group of ten?
Answer:
Explanation:
By adding 6 ones from Franco one set and
4 ones from Martin set making new group of ten.
B. How can you write an equation to solve the problem?
___46_____ + ____8____ = ____54_____
Answer:
46 + 8 = 54,
Explanation:
Given Franco plays with 46 toy cars and
Martin plays with 8 toy cars so many toy cars do
they play with are 46 + 8 = 54
C. Show how you break apart one addend and then add.
Answer:
Explanation:
Given Franco plays with 46 toy cars.
Martin plays with 8 toy cars.
Franco has 4 tens and 6 ones to make tens we are
getting 4 ones less so we break apart 8 into 4 and 4
ones and add as 46 + 4 + 4 = 54 as shown.
D. Solve.
They play with ____54____ toy cars.
Answer:
46 + 8 = 54,
They play with 54 toy cars,
Explanation:
Given Franco plays with 46 toy cars and
Martin plays with 8 toy cars so many toy cars do
they play with are 46 + 8 = 54, they play with 54 toy cars.
Turn and Talk How does breaking apart a number
before you add it change the total?
Answer:
There will be no change in the total,
Explanation:
Breaking apart a number before adding it
will not change the total we only arrange or
seperate according to the digits the hundreds digit,
the tens digit and the ones digit and add so there
will be no change in the total.
Question 2.
There are 37 stuffed bears and 5 stuffed tigers.
How many stuffed animals are there?
A. How can you draw to show the problem?
Make a new group of ten to solve.
Answer:
Explanation:
Drawn to show the problem and made a new group of ten.
B. How can you complete each equation to solve the problem?
Answer:
Explanation:
Wrote equation as 37 + 5 breaking apart
5 as 3 and 2 and adding to 7,
37 + 3 + 2,
40 + 2 = 42
C. Solve.
There are _____42_____ stuffed animals.
Answer:
There are 42 stuffed animals,
Explanation:
Given there are 37 stuffed bears and 5 stuffed tigers.
Adding 5 to 37 we get 42,
so there are 42 stuffed animals.
Check Understanding
Question 1.
A Draw to show the problem. Make a new group of ten. Complete each equation to solve.
Tamika has 18 toy cars. Jake gives her 6 more toy cars.
How many toy cars does Tamika have now?
Tamika has _____24____ toy cars.
Answer:
Tamika has 24 toy cars,
Explanation:
Given Tamika has 18 toy cars.
Jake gives her 6 more toy cars, we break apart
6 into 2 and 4 so that we can make a new ten
group so that 18 + 2 + 4 becomes
20 + 4 = 24, Tamika has 24 toy cars.
On Your Own
Use Structure Make a new group of ten. Complete each equation to solve.
Question 2.
Kay has 38 shells. She gets 6 more shells.
How many shells does Kay have now?
Kay has ____44_____ shells now.
Answer:
Kay has 44 shells now,
Explanation:
Given Kay has 38 shells. She gets 6 more shells,
we break apart 6 into 2 and 4 so that we can make a
new ten group so that 38 + 2 + 4 becomes
40 + 4 = 44, Kya has 44 shells now.
Question 3.
Joel takes 64 pictures of birds and 9 pictures of flowers.
How many pictures does he take?
Joel takes ____73_____ pictures.
Answer:
Joel took 73 pictures,
Explanation:
Given Joel takes 64 pictures of birds and
9 pictures of flowers. We break apart 9 into 6 and
3 so that we can make a new ten group so that
64 + 6 + 3 becomes 70 + 3 = 73,therefore
Joel took 73 pictures.
I’m in a Learning Mindset!
Was I able to finish my work? What helps me stay on task?
Answer:
Yes, Breaking apart an addend makes a new group of ten,
helped me to stay on task,
Explanation:
Yes I am able to finish my work,
I can break apart an addend to make a new group of ten to
solve addition equations. Helped me to stay on task.