Area and Perimeter
What is the perimeter of a rectangle that has a length of 7 feet and a width of 5 feet?
What is 24 feet?
Ms. Melching went to McDonald's and ordered a cheeseburger, fries and a coke. Her totally was $3.80. If Ms. Melching paid with $10.00. How much change should she get back?
$6.20 in change.
21 x 3 =
63
180 ÷ 5 =
36
What is a variable?
Something that can be changed - often the letter that holds a value in a math equation
The equation used to find area.
What is area = length x width or A = l x w?
Riverside is having a food drive. If there are 14 classrooms, and each class brings in 100 canned goods, how many canned goods will Riverside collect in all?
1,400 canned goods in all.
85 x 9 =
765
228 ÷ 8 =
28 R 5
What do we call the top number in a fraction?
Numberator
Length: 14 meters
Width: 7 meters
What is the area?
What is 98 square meters?
A rectangle that is 6 feet wide has an area of 54 square feet. What is the perimeter of the rectangle, in feet?
The perimeter is 30 feet.
45 x 10 =
420 ÷ 12 =
35
What is the difference between parallel and perpendicular lines?
Perpendicular lines cross to form a right angle, parallel lines never touch each other.
What are the two formulas for perimeter?
p = (2 x l) + (2 x w)
p= 2 (l+w)
Three fourth grade classes have 26 students and one fourth grade class only has 24 students. How many total students are in the fourth grade?
102 students
74 x 23 =
1,702
952 ÷ 3 =
317 R 3
What is a quotient?
The answer to a division problem.
What is the length of a rectangle that has a width of 8 feet and an area of 128 square feet?
16 meters
An extra large pizza is cut into 16 slices. Liam eats 3/16 of the pizza. How much of the pizza is left?
13/16 of the pizza is left.
15 x (4 x 2) =
120
150 ÷ (4 + 1)
30
What is the difference between a prime and a composite number?
Prime is a number greater than one that only has two factors - 1 and itself - and a composite number is a number that has more than two factors.