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Solve the questions in **Math Expressions Grade 2 Homework and Remembering Answer Key Unit 3 Lesson 1 Answer Key Measure Length** to attempt the exam with higher confidence. https://mathexpressionsanswerkey.com/math-expressions-grade-2-unit-3-lesson-1-answer-key/

## Math Expressions Common Core Grade 2 Unit 3 Lesson 1 Answer Key Measure Length

**Math Expressions Grade 2 Unit 3 Lesson 1 Homework**

Use your centimeter ruler. Measure each horizontal line segment below by marking and counting 1 -cm lengths.

**Answer Key Math Expressions Grade 2 Unit 3 Lesson 1 Question 1.**

__________ cm

Answer: 3 cm

Explanation:

A line segment has a beginning and an end. The line segment is a part of a line. It has two end points denoted by A and B.

We hold the scale properly along the line segment. We read the mark on the scale that coincides with the end point B. Here, we see that the 3rd cm mark on the scale that coincides with the end point B. Here, we see that the 3rd centimetre mark coincides with the end point B. Thus, the length of the line segment AB is 3 cm.

**Lesson 1 Answer Key Math Expressions Grade 2 Unit 3 Question 2.**

__________ cm

Answer: 5 cm

Explanation:

A line segment has a beginning and an end. The line segment is a part of a line. It has two end points denoted by A and B. We hold the scale properly along the line segment. We read the mark on the scale that coincides with the end point B. Here, we see that the 5th cm mark on the scale that coincides with the end point B. Here, we see that the 5th centimetre mark coincides with the end point B. Thus, the length of the line segment AB is 5 cm.

**Grade 2 Unit 3 Lesson 1 Answer Key Math Expressions Question 3.**

__________ cm

Answer: 4cm

Explanation:

A line segment has a beginning and an end. The line segment is a part of a line. It has two end points denoted by A and B. We hold the scale properly along the line segment. We read the mark on the scale that coincides with the end point B. Here, we see that the 4th cm mark on the scale that coincides with the end point B. Here, we see that the 4th centimetre mark coincides with the end point B. Thus, the length of the line segment AB is 4 cm.

**Math Expressions Grade 2 Unit 3 Lesson 1 Answer Key Question 4.**

Draw a line segment 8 cm long. Mark and count 1-cm lengths to check the length.

Answer: 8cm

Explanation:

A line segment has a beginning and an end. The line segment is a part of a line. It has two end points denoted by A and B. We hold the scale properly along the line segment. We read the mark on the scale that coincides with the end point B. Here, we see that the 4th cm mark on the scale that coincides with the end point B. Here, we see that the 4th centimetre mark coincides with the end point B. Thus, the length of the line segment AB is 4 cm.

**Measure each vertical line segment below by marking and counting 1 -cm lengths.**

**Math Expressions Grade 2 Unit 3 Lesson 1 Answer Key Measure Length Question 5.**

__________ cm

Answer: 2cm

Explanation:

A line segment has a beginning and an end. The line segment is a part of a line. It has two end points denoted by A and B. We hold the scale properly along the line segment. We read the mark on the scale that coincides with the end point B. Here, we see that the 2nd cm mark on the scale that coincides with the end point B. Here, we see that the 2nd centimetre mark coincides with the end point B. Thus, the length of the line segment AB is 2 cm.

Question 6.

__________ cm

Answer: 4cm

Explanation:

A line segment has a beginning and an end. The line segment is a part of a line. It has two end points denoted by A and B. We hold the scale properly along the line segment. We read the mark on the scale that coincides with the end point B. Here, we see that the 4th cm mark on the scale that coincides with the end point B. Here, we see that the 4th centimetre mark coincides with the end point B. Thus, the length of the line segment AB is 4 cm.

Question 7.

__________ cm

Answer: 1cm

Explanation:

A line segment has a beginning and an end. The line segment is a part of a line. It has two end points denoted by A and B. We hold the scale properly along the line segment. We read the mark on the scale that coincides with the end point B. Here, we see that the 1st cm mark on the scale that coincides with the end point B. Here, we see that the 1st centimetre mark coincides with the end point B. Thus, the length of the line segment AB is 1 cm.

**Math Expressions Grade 2 Unit 3 Lesson 1 Remembering**

**Make a ten to find the total.**

Question 1.

4 + 7 = __________

4 + 8 = __________

9 + 5 = __________

Answer:

Explanation:

In this make a ten strategy one smaller addend is decomposed in to two parts.

The amount of one part is added to the first partner to make it ten. As shown in the above picture.

Question 2.

8 + 5 = __________

7 + 9 = __________

6 + 7 = __________

Answer:

Explanation:

In this make a ten strategy one smaller addend is decomposed in to two parts.

The amount of one part is added to the first partner to make it ten. As shown in the above picture.

**Draw lines to make pairs. Write odd or even.**

Question 3.

__________

Answer: **Even**

Explanation:

When we draw a line to make a pair of counters, all counters join with pairs. it shows these are**even**

Question 4.

__________

Answer: **Odd**

Explanation:

When we draw a line to make a pair of counters, one counter is left, it shows these are

**odd**

**Add.**

Question 5.

30 + 60 = __________

3 + 6 = __________

Answer:

Explanation:

Each stick represents tens place.

Each circle represents ones place.

Add the numbers in tens place and ones place separately to find the sum.

50 + 20 = __________

5 + 2 = __________

Answer:

Explanation:

Each stick represents tens place.

Each circle represents ones place.

Add the numbers in tens place and ones place separately to find the sum.

10 + 90 = __________

1 + 9 = __________

Answer:

Explanation:

Each stick represents tens place.

Each circle represents ones place.

Add the numbers in tens place and ones place separately to find the sum.

Question 6.**Stretch Your Thinking** Ryan measures the length of his pen. He places the end of the pen at the 1 -inch mark of a ruler. Tell why the measurement will be wrong.

Answer:

Pen should be placed one end at zero or starting point or the ruler and the other end to be checked for the length of the pen.

If it places at one inch , the length of the pen will not be measured properly.

Explanation:

A ruler can be defined as a tool or device used to measure length and draw straight lines.

If he starts at 1, he is adding 1 inch to measurement.

So, the measurement will be wrong.