Area/perimeter
What is the area of the rectangle?
length: 18 m
width: 4 m
A = 72 sq. m
Complete the table below that relates meters and decimeters.
Meters Decimeters
1 ______
2 ______
3 30
4 ______
10, 20, 30, 40
True/false.
1. Multiply by 10 to convert centigrams to milligrams.
2. Multiply by 10 to convert decagrams to grams.
1. True
2. False
True/false
Multiply by 100 to convert kiloliters to decaliters.
True
For the following, complete the conversion. Then choose the operation and complete the equation to show how you found your answer.
15 min = ____ sec 15 [× /] ____=____
4 days = ____ hours 4 [× /] ____=____
15 min = 900 sec 15 × 60 = 900
4 days = 96 hours 4 × 24 = 96
Find the length, width, and perimeter.
18 in
___________
l l 12 in
l___________l
Length:
Width:
Perimeter:
Length: 18 in
Width: 12 in
Perimeter: 60 in
A photograph is 7 centimeters wide. After Kari enlarges the photograph, it is 4 times as wide as the original.
How wide is the new photograph in millimeters?
280 millimeters
Classify the conversion as ×10, ×100, or ×1,000.
1. Hectograms to grams
2. Hectograms to decagrams
1. 100
2. 10
What is the relationship between these units of time: hours, minutes, and seconds?
Each of these units of time is ____ times as long as the next smaller unit of time. So, 1 hour is ____ times as long as 1 minute and 1 minute is ____ times as long as 1 second.
60, 60, 60
Find the perimeter (P) and area (A) of the rectangle.
12 cm
__________________
| | 6 cm
|_________________|
P = ______
A = ______
A= 72 sq. cm
P= 36 cm
A photograph is 8 centimeters wide. After Kari enlarges the photograph, it is 3 times as wide as the original. How was is the new photograph in millimeters?
240 mm
A bear cub weighs 64 ounces in March. After 3 months, it weighs 31 pounds.
PART A: How many pounds did the cub weigh in March?
PART B: Show your work.
33 pd
Match the equivalent measurements.
23 cups = 4 gal
3 gal = 1 qt
32 fluid oz = 184 fluid oz
16 qt = 12 qt
23 cups = 184 fluid oz
3 gal = 12 qt
32 fluid oz = 1 qt
16 qt = 4 gal
During a speech, a motivational speaker says, "There are 1,440 seconds in each day."
Do you agree or disagree with the speaker? Why?
I _agree/disagree._ There are ____ seconds in a day.
Disagree. 86400 seconds.
A rectangular cafeteria tray measures 18 inches on the long ides. It measures 12 inches on the short sides. What is the perimeter of the tray?
60 inches
A bear cub weighs 3 pounds in March. After three months, it weighs 528 ounces.
1. How many ounces did the cub weigh in March?
2. Did the bear cub gain more than 400 ounces after 3 months?
1. 48 oz
2. Yes
Meredith wanted to make some punch for a party. The recipe called for 3 liters of fruit juice, 2 liters of apple juice, and one liter of grape juice. How many milliliters of juice is needed for the recipe?
6000 ml
A rectangular scarf has an area of 192 square inches. The short sides of the scarf are each 6 inches long.
PART A: use the labels from the list to complete the model. Labels can be used more than once.
PART B: What is the perimeter of the scarf?
PART A: on board
PART B: 76 inches
A bag of rice has a mass of 3 kilograms. Jackie buys 17 bags of rice for the school cafeteria. How many grams of rice did Jackie buy?
Answer and explain how you solved the problem using work.
51,000 g
A movie starts at 12:45 p.m. and is exactly 1 hour and 35 minutes long.
PART A: What time does the movie end?
PART B: It takes Lynn 25 minutes to get to the movie theater. She wants to meet her friends at the theater at least 15 minutes before the movie starts. What is the latest time Lynn can leave her house?
PART B: 12:05 p.m.