Refer to our Texas Go Math Grade 2 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 2 Unit 2 Answer Key Number and Operations: Computation, Money, and Equal Groups.

## Texas Go Math Grade 2 Unit 2 Answer Key Number and Operations: Computation, Money, and Equal Groups

**Show What You Know**

**Check your understanding of important skills.**

**Differences to 10**

**Write the difference.**

Question 1.

6 – 2 = _________

Answer:

4

Explanation:

Difference between 6 and 2 is 4

Question 2.

7 – 4 = ___________

Answer:

3

Explanation:

Difference between 7 and 4 is 3

Question 3.

10 – 4 = ___________

Answer:

6

Explanation:

Difference between 10 and 4 is 6

**Model Tens and Ones to 100**

**Write how many tens and ones. Write the number.**

Question 4.

__________ tens _________ ones = ___________

Answer:

5 tens 4 ones = 54

Explanation:

5 tens and 4 ones is equal to 54.

50 + 4 = 54

Question 5.

__________ tens _________ ones = ___________

Answer:

4 tens 5 ones = 45

Explanation:

4 tens and 5 ones is equal to 45.

40+ 5 = 45

**Regroup Tens as Ones.**

**Regroup 1 ten as 10 ones. Write how many.**

Question 6.

47 = 4 tens 7 ones

47 = __________ tens _________ ones

Answer:

47 = 47 ones

Explanation:

1 ten = 10 ones

so

4 tens = 40 ones

47 = 4 tens 7 ones = 40 ones and 7 ones = 47 ones

Question 7.

35 = 3 tens 5 ones

35 = __________ tens _________ ones

Answer:

47 = 35 ones

Explanation:

1 ten = 10 ones

so

3 tens = 30ones

35= 3 tens 5 ones = 30 ones and 5 ones = 35ones

**Vocabulary Builder**

Visualize It

Fill in the boxes of the graphic organizer.

**Review words**

difference

regroup

tens

ones

digit

Explanation:

**Understand Vocabulary**

Draw a line to complete the sentence.

Answer:

Explanation:

Sentences are matched to appropriate sentences

**Vocabulary Reader**

Tasha’s Cranes

written by Mike Mason

This Take-Home Book belongs to

Tasha folded paper cranes For her senior center friends. She needs 100 cranes in all. She will make them by the tens.

Answer: 10 tens

Explanation:

10 tens = 100 ones

Tasha started and made just 10. Then she a short rest had to take. She subtracted 10 from 100. Wow! She still had 90 more to make.

Answer:

10 – 1 = 9

10 tens – 1 ten = 9 tens

100 – 10 = 90

Explanation:

The next day she folded 40 cranes. How many more does she need? Find 9 tens take away 4 tens And you will know indeed.

Answer:

9 – 4 = 5

9 tens – 4 tens = 5 tens

90 – 40 = 50

Explanation:

On Friday she made 3 more sets of ten. “Am I done?” she wondered then.

Answer:

5 – 3 = 2

5 tens – 3 tens = 2 tens

50 -30 = 20

Explanation:

5 tens less 3 tens leaves 2 tens to do. So on Saturday she made 20 more. Finally 100 done. She was through!

Answer:

50 + 30 + 20 = 100

At the senior center she gave away the 1 100 cranes—everyone. The senior citizens thanked her for what she had done.

Answer:

**Write about the Math**

Write Math: Look at the picture. Draw and write your own story about the cranes. Include subtracting tens in your story.

**Vocabulary Review**

tens

subtract

take away

Answer:

Meara made 5 cranes. she counts 1 as 10.she shared 3 cranes with Meena.

how many does she had?

How Many Tens?

5 tens – 3 tens = 2 tens

This picture shows the cranes that the children in Keisha’s class made.

Question 1.

In the picture of the cranes above, circle groups of tens. How many groups of 10 cranes are there?

__________ groups of 10 cranes

How many cranes are in the picture?

_________ cranes

Answer:

3 groups of 10 cranes

3 x 10 = 30 cranes

Question 2.

Keisha’s classmates want to make 100 crones. How many tens are in 100?

_______ tens

Answer:

10 x 10 = 100

there are 10 tens in the 100

Question 3.

Look at the picture of cranes above. How many more groups of 10 cranes are needed to have 100 cranes in all?

_______ more groups of 10 cranes

Answer:

7 more groups of 10 cranes

are needed to have 100 cranes in all

Math Board: Write a question about the story that has to do with subtracting tens. Have a classmate answer your question.

Answer:

Meshack made 8 cranes

they need 4 out of them for selling

80 – 40 = 40

So he has 4 tens left.