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Definitions
Multiplying 1-digit by 2-digits
Multiplying 2 by 2 Digits
Area
Perimeter
100
What is the answer to a multiplication problem called?
The product.
100
13 x 5
65
100
65 x 34
2,210
100

Solve using the area model. 18 x 7

126

100

Jason’s rectangular computer screen is
50 centimeters across and 36 centimeters high. What is its perimeter? Show your work

172cm

200
What is the answer to an addition problem called?
The sum.
200
35 x 7
245
200
76 x 23
1,748
200

Solve using area model. 15 x 11

165

200

Herbert is decorating the bulletin board in the school’s lobby. The bulletin board is a 7 ft by 11 ft rectangle. He decides to add a black border around the entire bulletin board. What is the length of border that he needs?

36 ft border = perimeter 7 + 11 + 7 + 11 = 36 (2 x 7) + (2 x 11) = 36

300
What is the answer to a subtraction problem called?
The difference.
300
76 x 8
608
300
12 x 13
156
300

Bill builds a rectangular deck with a length of 15 feet and a width of 7 feet. What is the area of Bill’s deck? Show your work.

105 feet

300

Before soccer practice, Laura warms up by jogging around the soccer field that is 80 yards by 120 yards. How many yards does she jog if she goes around the field two times?

P = 80 + 120 + 80 + 120 = 400 yards Twice the perimeter 400 x 2 = 800 yards

400
What do you divide by to divide a number in half?
2
400
90 x 8
720
400
16 x 56
896
400

A map of the world is 2 feet tall and 5 feet wide. What is its area?

10 square feet

400

Each side of a square piece of glass is 6 centimeters long. What is the piece of glass's perimeter?

24 centimeters

500
What do you call the numbers you multiply in a multiplication problem?
Factors.
500
96 x 6
576
500
99 x 99
9801
500

Barret mows a rectangular lawn that has an area of 90 square meters. The width of the lawn is 6 meters. What is the length of the lawn?

15 meters

500

A rectangular piece of metal is 6 centimeters wide and 9 centimeters long. What is its perimeter?

30 centimeters