Multiplication
2 x 3
6
10 x 10
100
What is the formula for area?
Length x width
What is the formula for perimeter?
the sum of all sides
Joey has 20 times as many baseball cards as his brother. His brother has 9 baseball cards. How many cards does Joey have?
Joey has 180 cards.
3 x 5
15
10 x 20
200
A rectangle has a length of 9m and width of 4m. What is the area?
36m2 or 36 sq meters
30in
Bonnie worked for 30 hours each week for 20 weeks. How many hours did she work altogether?
Bonnie worked 600 hours altogether.
4 x 6
24
30 x 40
1,200
A rectangle has a length of 40cm and width of 2cm. What is the area?
80 cm2 or 80 sq cm
A rectangle has a length of 40cm and width of 2cm. What is the perimeter?
84cm
The aquarium has 30 times as many fish as Jacob has. The aquarium has 90 fish. How many fish does Jacob have?
Jacob has 3 fish.
5 x 7
35
40 x 50
2,000
A rectangle has a width of 30in and length of 80in. What is the area?
2,400in2 or 2,400 sq in
A rectangle has a width of 30in and length of 80in. What is the perimeter?
220in
A rectangle has an area of 60 square centimeters. If the width of the rectangle is 6 cm, what is the length?
The length of the rectangle is 10cm.
9 x 8
72
16 x 100
1,600
A rectangle has a length of 90ft and width of 70ft. What is the area?
6,300ft2 or 6,300 sq ft
A rectangle has a length of 90ft and width of 70ft. What is the perimeter?
320ft
Our classroom has a perimeter of 140ft. If the width is 40ft, what is the length?
The length of the classroom is 30 ft.