All the solutions provided in 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 ¡n 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.
Jessa’s ski poles are 65 centimeters tall. Her sister’s ski poles are 80 centimeters tall. How much shorter are Jessa’s ski poles?
_____________ centimeters
Answer:
15 centimeters
Explanation:
Jessa’s ski poles are 65 centimeters tall.
Her sister’s ski poles are 80 centimeters tall.
80 – 65 = 15
15 cm shorter are Jessa’s ski poles.
Question 11.
Molly’s wagon is 100 centimeters long. How many meters long is Molly’s wagon?
____________ meter
Answer:
1 meter
Explanation:
Molly’s wagon is 100 centimeters long.
1 meter = 100 centimeter
1 meters long is Molly’s wagon.
HOT Problem The length of Isaac’s bed is 2 meters. How many centimeters long is Isaac’s bed? Explain.
Answer:
2 meters
Explanation:
Because, 1 meter = 100 cm
2 x 100 = 200 cm
so, the length of Isaac’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 house 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 is 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