Multiplication
45 x 7
315
90 divided by 5 =
18
Find the area of a square with sides of 3 meters long.
9 SQUARE meters
Find the perimeter of a square with side lengths of 8 yards.
32 yards
What is the difference between length and width?
Length are longer sides, width are shorter sides
Length is how long and the width is how wide
Length is usually the top and bottom while with is usually the left and right sides
Length is left to right and width is top to bottom
32 x 13
416
78 divided by 3
26
Find the area of a rectangle with a length of 7 cm and a width of 6 cm.
42 square cm
Find the perimeter of a rectangle with a length of 19 inches and a width of 9 inches.
19 + 19 + 9 + 9 = 56 inches.
What is the difference between area and perimeter?
Area = inside, measured in square units, 2 dimensional
Perimeter = outside, measure in units, 1 dimensional
48 x 39
1,872
114 divided by 6
19
The area of a rectangle is 96 square centimeters and the length is 12 centimeters. What is the width of the rectangle?
8 centimeters is the width
If the area of a square is 36 square inches, what is the perimeter?
6 + 6 + 6 + 6 = 24 inches.
Ms. Condon gives the class the following problem: 358 divided by 8.
Cyrus says the answer is 44 R4
Lookie says the answer is 44 R6
Billiam says the answer is 44 R2. Who is correct? Show work using multiplication!
44 x 8 = 352. 352 + 6 = 358, so the remainder needs to be 6.
Lookie's answer of 44 R6 is correct :)
Go Lookie!
387 x 9
3,483
326 divided by 9
36 R2
The perimeter of a rectangle is 48 inches and the length is 16 inches. What is the area of the rectangle?
The area of a rectangle is 27 square inches and the length is 9 inches, what is the perimeter of the rectangle?
9 + 3 + 9 + 3 = 24 inches.
DOUBLE JEOPARDY! TWICE AS MANY POINTS!
How does the area model have to do with area?
You multiply the length and width of each rectangle to get the AREA for each rectangle.
When you add the partial products, you are actually adding the AREA of each rectangle to find the AREA of the whole entire rectangle.
9,826 x 7
68,782
4,782 divided by 9
531 R3
If the length of a rectangle is 24 inches and the width is 1 foot, what is the area of the rectangle?
Either 288 square inches or 2 square feet.
Estimate the perimeter of this room. Closet to the correct answer will win all 500 points!
I will let you know :)
Name as many methods for multiplication as you can. 100 points for each correct answer.
Area Model, Partial Products, Standard Algorithm, Base 10 Blocks, Number Line, Repeated Addition, Array, and Drawing