We included **HMH Into Math Grade 2 Answer Key PDF** **Module 11 Lesson 4 Decompose Addends as Tens and Ones **to make students experts in learning maths.

## HMH Into Math Grade 2 Module 11 Lesson 4 Answer Key Decompose Addends as Tens and Ones

(I Can) solve an addition problem by breaking apart the addends into tens and ones.

**Spark Your Learning**

How can you break apart addends to add the tens and ones in two numbers?

Children roll two number cubes and write a two-digit number in the table using the numbers they rolled. They complete the first row by writing each two-digit number as a number of tens and ones and then in expanded form. Repeat for the second row. How can you use the information in the table to find the sum of the two numbers? Make a concrete model to show the problem.

Answer:

Seperately breaking the numbers,

Explanation:

Seperately breaking the numbers apart addends to

add the tens and ones in two numbers.

Children roll two number cubes and wrote a

two-digit number in the table using the numbers they rolled.

Completed the first row by writing each

two-digit number as a number of tens and

ones and then in expanded form. Repeated for the second row.

To find the sum of the two numbers we take first

adding 54 to 12 we break 12 as 54 needs 6 more to

make another tens we use the table to find

sum of the two numbers 5 tens and 4 ones need

6 ones from 12 so 54 + 12,

54 + 6 + 6,

60 + 6 = 66.

**Build Understanding**

Question 1.

Jack has 34 large beads and 25 small beads.

How many beads does he have?

A. How can you draw to show the problem?

Answer:

Jack 34 large beads and 25 small beads,

Explanation:

By using Jack 34 large beads and 25 small beads as

shown above.

B. How can you write an equation to solve the problem?

___34______ + ____25_____ = ___59_____

Answer:

34 + 25 = 59,

Explanation :

Given Jack 34 large beads and 25 small beads,

so equation is 34 + 25 = 59.

C. How can you break apart the addends into tens and ones?

34 → ____34____ + 25 → ____40_____ + ___19_______

Answer:

34 + 25 → 40 + 19,

Explanation:

The addends 25 can be broken into 6 and 19.

D. How can you find the sum?

Add the tens. ____30_____ + ____20______ = ___50_______

Add the ones. ___4______ + _____5_____ = ____9______

Find the sum. ____50_____ + _____9_____ = ____59______

Solve. Jack has _____59____ beads.

Answer:

Jack has 59 beads,

Explanation:

Adding the tens: 30 + 20 = 50,

Adding ones : 4 + 5 = 9,

Finding the sum: 50 + 9 = 59,

Jack has 59 beads.

E. Solve.

Jack has ___59_____ beads.

Answer:

Jack has 59 beads,

Explanation:

Given Jack 34 large beads and 25 small beads,

34 + 6 + 19,

40 + 19 = 59,

Jack has 59 beads.

**Turn and Talk** How does thinking about tens and ones help you solve addition problems? Explain.

Answer:

It makes thinking faster and easy,

Explanation:

Thinking about tens and ones help us easily add

the numbers quickly, breaking into small and adding

makes addition easy and faster.

**Step It Out**

Question 1.

Pierre sees 41 balloons. Then he sees 27 more balloons.

How many balloons does Pierre see now?

A. Draw to show the problem.

Answer:

Explanation:

Drawn Pierre saw 41 balloons and

then he saw 27 more balloons above.

B. Write an equation to solve the problem.

___41_____ + __27_____ = ___68_____

Answer:

41 + 27 = 68,

Explanation:

Given Pierre saw 41 balloons and

then he saw 27 more balloons so the eqaution

is 41 + 27 = 68.

C. Break apart the addends into tens and ones to find the sum.

Answer:

Explanation:

Broke apart the addends into tens and ones as

41 –> 40 + 1

27 –> 20 + 7

60 + 8 = 68.

D. Solve.

Pierre sees ____68_____ balloons

Answer:

Pierre sees 68 balloons,

Explanation:

Given Pierre saw 41 balloons and then he

saw 27 more balloons so 41+ 27

Broken apart the addends into tens and ones as

41 –> 40 + 1

27 –> 20 + 7

60 + 8 = 68

therefore Pierre sees 68 balloons.

**Check Understanding**

Question 1.

Maria reads 53 pages and Alex reads 12 pages.

How many pages do they read? Break apart the

addends into tens and ones to solve.

___65______ pages

Answer:

Maria and Alex reads 65 pages,

Explanation:

Given Maria reads 53 pages and Alex reads 12 pages,

Breaking apart the addends into tens and ones to solve as

53 –> 50 + 3

12 –> 10 + 2

60 + 5 = 65

therefore, Maria and Alex reads 65 pages.

**On Your Own**

Attend to Precision Break apart the addends into tens and ones.

Find the sum.

Question 2.

Dan has 27 gold stickers and 21 red stickers.

How many stickers does he have?

Dan has ___48_____ stickers.

Answer:

Dan has 48 stickers,

Explanation:

Given Dan has 27 gold stickers and 21 red stickers.

Breaking apart the addends into tens and ones to solve as

27 –> 20 + 7

21 –> 20 + 1

40 + 8 = 48

therefore, Dan has 48 stickers.

Question 3.

Allie has 33 star stickers and 16 heart stickers.

How many stickers does she have?

Allie has ___49_____ stickers.

Answer:

Allie has 49 stickers,

Explanation:

Given Allie has 33 star stickers and 16 heart stickers,

Breaking apart the addends into tens and ones to solve as

33 –> 30 + 3

16 –> 10 + 6

40 + 9 = 49

therefore, Allie has 49 stickers.

Question 4.

15 + 14 = _______

Answer:

15 + 14 = 29,

Explanation:

Given to solve 15 + 14,

Breaking apart the addends into tens and ones to solve as

15 –> 10 + 5

14 –> 10 + 4

20 + 9 = 29

therefore, the solution of 15 + 14 is 29.

Question 5.

46 + 22 = ________

Answer:

46 + 22 = 68,

Explanation:

Given to solve 46 + 22,

Breaking apart the addends into tens and ones to solve as

46 –> 40 + 6

22 –> 20 + 2

60 + 8 = 68

therefore, the solution of 46 + 22 is 68.

**I’m n a Learning Mindset!**

Which directions for breaking apart addends into

tens and ones were clear to me?

Which directions were not clear? Why?

Answer:

Directions of adding tens and ones were clear to me,

First breaking apart addends into tens and ones were not

that clear,

Explanation:

Directions of adding tens and ones were clear to me,

Its easy to add tens and ones and write results,

First breaking apart addends into tens and ones were not

that clear after that again adding tens place and one place,

to find the result.