This handy Spectrum Math Grade 4 Answer Key Chapter 7 Lesson 7.7 Meters and Kilometers provides detailed answers for the workbook questions.
Spectrum Math Grade 4 Chapter 7 Lesson 7.7 Meters and Kilometers Answers Key
100 centimeters (cm) = 1 meter (m)
100 cm= 1m
1,000 meters (m) = 1 kilometer (km)
1,000m = 1 km
Find the length of each of the following objects around your home to the nearest meter.
Question 1.
Object: width of TV screen
Length (m): ___________ m
Answer:
Length = 0.953 m
Explanation:
The width of the TV screen is 95.3 cm
1 m = 100 cm
now convert them to m
95.3 ÷ 100 = 0.953m
Question 2.
Object: height of stove
Length (m): ___________ m
Answer:
The length of the stove is 0.9144 m.
Explanation:
The height of stove is 36 inches tall
now convert inches to meters
36 inches = 36 × 0.0254
= 0.9144 m
Question 3.
Object: height of computer
Length (m): ___________ m
Answer:
0.7112 m
Explanation:
The height of the computer is 28 inches.
Therefore 28 inches in meters is 0.7112 m
Question 4.
Object: width of your bed
Length (m): ___________ m
Answer:
1.9m
Explanation:
The length bed is 190 cm
Now convert cm to m
1 m = 100 cm
190 ÷ 100 = 1.9 m
Question 5.
Object: height of TV
Length (m): ___________ m
Answer:
The length is 0.762
Explanation:
The height of the TV is 30 inches.
Now convert 30 inches to meters
The length is 0.762
Question 6.
Object: your height
Length (m): ___________ m
Answer:
Explanation:
My height is 5 inches.
Now convert 5 inches to m
The length is 0.127
Question 7.
Object: width of a window
Length (m): ___________ m
Answer:
The length of a window is 1.2 m
Explanation:
The length of the window is 120 cm.
Now convert 120 cm to m.
120 ÷ 100 = 1.2 m
Complete the following.
Question 8.
a. 600 cm = ______________ m
Answer:
6 m
Explanation:
We know
100 cm= 1m
Now convert 600 cm to m
600 cm = 600 ÷ 100
= 6 m
b. 9,000 m = ______________ km
Answer:
9 km
Explanation:
We know
1,000m = 1 km
Now convert 1000 m to km
9000 ÷ 1000 = 9 km
Question 9.
a. 7 m = __________ cm
Answer:
700 cm
Explanation:
We know
1 m = 100 cm
now convert 7 m to cm
7 × 100 = 700 cm
b. 10,000 m = ____________ km
Answer:
10 km
Explanation:
We know
1,000m = 1 km
now convert 10000 m to km
10000 ÷ 1000 = 10 km
Question 10.
a. 7 km = _____________ m
Answer:
7000 m
Explanation:
We know
1,000m = 1 km
Now convert 7 km to m
7 × 1000 = 7000 m
b. 23 km = _______________ m
Answer:
23000 m
Explanation:
We know
1,000m = 1 km
now convert 23 km to m
23 × 1000 = 23000 m
Question 11.
a. 8 m = ______________ cm
Answer:
800 cm
Explanation:
We know
1 m = 100 cm
now convert 8 m to cm
the answer is 8 × 100 = 800 cm
b. 32 m = ______________ cm
Answer:
3200 cm
Explanation:
We know
1 m = 100 cm
now convert 32 m to cm
100 × 32 = 3200 cm
Question 12.
a. 2 km = ______________ m
Answer:
2000m
Explanation:
We know
1,000m = 1 km
Now convert 2 km to m.
1000 × 2 = 2000 m
b. 14 m = ______________ cm
Answer:
1400 cm
Explanation:
We know
1 m = 100 cm
now convert 14 m to cm
14 × 100 = 1400 cm