All the solutions provided inÂ **McGraw Hill My Math Grade 2 Answer Key PDF Chapter 11 Lesson 7 Centimeters and Meters **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 2 Answer Key Chapter 11 Lesson 7 Centimeters and Meters

**Explore and Explain**

_______________ centimeters

_______________ centimeters

_______________ centimeters

_______________ centimeters

**Teacher Directions:** One unit cube is 1 centimeter long. Use unit cubes to measure each object. Write the length of each object on the line.

Answer:

8 centimeters

The cock is 8 centimeters long

2 centimeters

The ball is 2 centimeters long

4 centimeters

The nail is 4 centimeters long

3 centimeters

The ball is 3 centimeters

**See and Show**

Use a centimeter ruler to measure Âˇn centimeters. Use a meterstick to measure in meters There are 100 centimeters in a meter.

Helpful Hint

Use centimeters to measure shorter objects. Use meters to measure longer objects.

A Paper clip is about centimeters long.

**Find the object. Estimate the length. Measure each object in centimeters or meters.**

Question 1.

Object

Estimate: about _____________ centimeters

Measure: about _____________ centimeters

Answer:

Estimate: about 4 centimeters

Measure: about 3 centimeters

Explanation:

The pencil is about 4 centimeters long

Question 2.

Object

Estimate: about ______________ meters

Measure: about ______________ meters

Answer:

Estimate: about 45 centimeters

Measure: about 40 centimeters

Explanation:

The table is about 40 centimeters long.

Question 3.

Object

Estimate: about _____________ centimeters

Measure: about _____________ centimeters

Answer:

Estimate: about 10 centimeters

Measure: about 12 centimeters

Explanation:

The tissue box is 12 centimeters long

**Talk Math** Identify objects in the classroom that are about 1 centimeter long.

Answer:

Board pins are about 1 centimeter long.

**On My Own**

**Find the object. Estimate the length. Measure each object in centimeters or meters.**

Question 4.

Object

Estimate: about _____________ centimeters

Measure: about _____________ centimeters

Answer:

Estimate: about 30 centimeters

Measure: about 28 centimeters

Explanation:

The cup board is about 28 centi meters long

Question 5.

Object

Estimate: about _____________ centimeters

Measure: about _____________ centimeters

Answer:

Estimate: about 30 centimeters

Measure: about 30 centimeters

Explanation:

The paper is about 30 centimeters long.

Question 6.

Object

Estimate: about _____________ centimeters

Measure: about _____________ centimeters

Answer:

Estimate: about 15 centimeters

Measure: about 14 centimeters

Explanation:

The Ice cream stick is about 14 centimeters long

Question 7.

Object

Estimate: about ______________ meters

Measure: about ______________ meters

Answer:

Estimate: about 2 meters

Measure: about 2 meters

Explanation:

The door is about 2 meters long

Measured with measuring tape.

Question 8.

Object

Estimate: about ______________ meters

Measure: about ______________ meters

Answer:

Estimate: about 1 meters

Measure: about 1 meters

Explanation:

The table is measured about 1 meter

Measured with measuring tape.

**Problem Solving**

Question 9.

Tyler runs the 100 meter dash two times. How many meters does he run in all?

____________ meters

Answer:

200 meters

Explanation:

Tyler runs the 100 meter dash two times.

100 + 100 = 200

200 meters that he run in all

Question 10.

Jessaâ€™s ski poles are 65 centimeters tall. Her sisterâ€™s ski poles are 80 centimeters tall. How much shorter are Jessaâ€™s ski poles?

_____________ centimeters

Answer:

15 centimeters

Explanation:

Jessaâ€™s ski poles are 65 centimeters tall.

Her sisterâ€™s ski poles are 80 centimeters tall.

80 – 65 = 15

15 cm shorter are Jessaâ€™s ski poles.

Question 11.

Mollyâ€™s wagon is 100 centimeters long. How many meters long is Mollyâ€™s wagon?

____________ meter

Answer:

1 meter

Explanation:

Mollyâ€™s wagon is 100 centimeters long.

1 meter = 100 centimeter

1 meters long is Mollyâ€™s wagon.

**HOT Problem** The length of Isaacâ€™s bed is 2 meters. How many centimeters long is Isaacâ€™s bed? Explain.

Answer:

2 meters

Explanation:

Because, 1 meter = 100 cm

2 x 100 = 200 cm

so, the length of Isaacâ€™s bed is is 2 meters

### McGraw Hill My Math Grade 2 Chapter 11 Lesson 7 My Homework Answer Key

**Practice**

**Find the object. Estimate the length. Measure each object in centimeters or meters.**

Question 1.

Object

Estimate: about _______________ centimeters

Measure: about _______________ centimeters

Answer:

Estimate: about 200 centimeters

Measure: about 190 centimeters

Explanation:

The door is about 200 centimeters long

Question 2.

Object

Estimate: about _______________ centimeters

Measure: about _______________ centimeters

Answer:

Estimate: about 150 centimeters

Measure: about 128 centimeters

Explanation:

The cup board is about 128 centimeters long

Question 3.

Object

Estimate: about _______________ meters

Measure: about _______________ meters

Answer:

Estimate: about 300 meters

Measure: about 253 meters

Explanation:

The houseÂ is about 253 meters long.

**Find the object. Estimate the width. Measure each object in centimeters or meters.**

Question 4.

Object

Estimate: about _______________ centimeters

Measure: about _______________ centimeters

Answer:

Estimate: about 18 centimeters

Measure: about 20 centimeters

Explanation:

The book is about 20 centimeters long

Question 5.

Object

Estimate: about _______________ meters

Measure: about _______________ meters

Answer:

Estimate: about 3 meters

Measure: about 3 meters

Explanation:

The road isÂ about3 meters long

Question 6.

One pine tree is 4 meters tall. The other pine tree is 3 meters tall. How many centimeters taller is the first pine tree?

_____________ centimeters

Answer:

100 centimeters

Explanation:

One pine tree is 4 meters tall.

The other pine tree is 3 meters tall.

1 meter = 100 centimeters

4 x 100 = 400

3 x 100 = 300

400 – 300 = 100

100 centimeters taller is the first pine tree

**Vocabulary Check**

Question 7.

Circle the answer that is the same as 1 meter.

1 centimeter

10 centimeters

100 centimeters

1,000 centimeters

Answer:

Explanation:

1 meter is equal to 100 centimeters

so, circled 100 centimeters

**Math at Home** Have your child identify objects he or she would measure using centimeters.

Answer:

Ruler is the object that is measured in centimeters