splash screen. lesson menu five-minute check (over lesson 11–7) main idea and vocabulary key...
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Five-Minute Check (over Lesson 11–7)
Main Idea and Vocabulary
Key Concept: Metric Units of Length
Example 1:Select an Appropriate Unit
Example 2:Convert Larger Units to Smaller Units
Example 3:Convert Smaller Units to Larger Units
Metric Rulers
• I will choose an appropriate metric unit for measuring length and convert metric units of length.
• metric system
• centimeter
• millimeter
• meter
• kilometer
Select an Appropriate Unit
Which unit would you use to measure the height of a street light pole: millimeter, centimeter, meter, or kilometer?
Answer: So, a meter is an appropriate unit of measure.
The height of a street light pole is much greater than the width of a pinky finger but much smaller than 6 city blocks.
1. A
2. B
3. C
4. C0% 0%0%0%
A. millimeter
B. centimeter
C. meter
D. kilometer
Which unit would you use to measure the width of a text book?
Convert Larger Units to Smaller Units
An art project required strips of paper 8 centimeters long. How many millimeters long is each strip?
Convert Larger Units to Smaller Units
You need to convert 8 centimeters to millimeters.
A larger unit (cm) is being converted to a smaller unit (mm), so you will multiply.
8 × 10 = 80 Since 1 cm = 10 mm, multiply 8 by 10.
Answer: So, 8 cm = 80 mm. The art project required strips of paper 80 millimeters long.
8 cm = mm
1. A
2. B
3. C
4. D0% 0%0%0%
A. 5 cm
B. 50 cm
C. 500 cm
D. 5,000 cm
Convert 5 meters to centimeters.
Convert Smaller Units to Larger Units
A high school track measures 250 meters. Luis ran 12 times around the track. How many kilometers did he run?
Step 1 Find the length in meters.
number of laps length of one lap total length
12 250 m 3,000 m× =
Convert Smaller Units to Larger Units
Step 2 Convert 3,000 meters to kilometers.
A smaller unit (m) is being converted to a larger unit (km), so you will divide.
3,000 ÷ 1,000 = 3 Since 1,000 m = 1 km, divide 3,000 by 1,000.
Answer: So, 3,000 m = 3 km. Luis ran 3 kilometers total around the high school track.
3,000 m = km
1. A
2. B
3. C
4. D0% 0%0%0%
A. 7 cm
B. 70 cm
C. 700 cm
D. 7,000 cm
Convert 70 millimeters to centimeters.
1. A
2. B
3. C
4. D0% 0%0%0%
(over Lesson 11–7)
Find the elapsed time.
6:40 A.M. to 11:17 A.M.
A. 4 h 37 min
B. 4 h 35 min
C. 5 h 34 min
D. 5 h 32 min
1. A
2. B
3. C
4. D0% 0%0%0%
(over Lesson 11–7)
Find the elapsed time.
1:25 P.M. to 8:10 P.M.
A. 5 h 6 min
B. 5 h 12 min
C. 6 h 32 min
D. 6 h 45 min
1. A
2. B
3. C
4. D0% 0%0%0%
(over Lesson 11–7)
Find the elapsed time.
10:36 A.M. to 4:26 P.M.
A. 5 h 55 min
B. 5 h 50 min
C. 5 h 40 min
D. 6 h 10 min
1. A
2. B
3. C
4. D0% 0%0%0%
(over Lesson 11–7)
Find the elapsed time.
10:13 P.M. to 7:06 A.M.
A. 8 h 53 min
B. 8 h 52 min
C. 7 h 53 min
D. 7 h 57 min
1. A
2. B
3. C
4. D0% 0%0%0%
(over Lesson 11–7)
Find the elapsed time.
9:40 A.M. to 1:55 P.M.
A. 4 h 5 min
B. 4 h 15 min
C. 4 h 25 min
D. 4 h 35 min
1. A
2. B
3. C
4. D0% 0%0%0%
(over Lesson 11–7)
Find the elapsed time.
6:22 P.M. to 2:34 A.M.
A. 8 h 24 min
B. 8 h 16 min
C. 8 h 12 min
D. 8 h 6 min