Prime/Composites
What is a prime number?
A number that has ONLY 2 factors
12 x 5 =
60
700 / 7 =
100
What is AREA?
the space INSIDE a shape
Poppy needs a fence in the backyard. Are we calculating AREA or PERIMETER?
Perimeter
What is a composite number?
A number with 3 or more factors.
200 x 300
60,000
81 / 9 =
My kitchen is 8 by 13 feet. What is the area?
8 x 13= 104 ft 2
Define Perimeter
The distance around a shape
Give an example of a PRIME number.
3, 5, 7, 11, 13, 17, 19, 23, 29...
500 x 8 =
4,000
876 / 3=
292
How do you label area problems?
units squared
If the cage for Poppy is 42 by 10 inches. What is the perimeter.
104 inches
Give an example of a COMPOSITE number.
4, 6, 8, 9, 10, 12, 14, 15, 16, 18...
32 x 56
1792
98,612 / 5 =
19,722 R.__
The back yard of Mrs. Sak's house is 24 by 19 feet. What is the total area for Poppy to run around?
456 sq. ft.
Perimeter is the distance around a shape. What is the distance around a regular pentagon with 4 meter sides.
20 meters.
What is the only even prime number?
2
98 x 74
7252
229,872 / 2 =
114,936
Calculate the area of the Irving hallway. The 3rd floor is 8 feet wide and 108 feet long.
864 ft sq.
My kitchen island is 7 feet by 3 feet. The perimeter is 20 feet. What is the area of my island?
21 ft2