Multiplying Integers (Prior Knowledge)
7 x 9
63
Draw a representation of 6/8
See teacher answer key
What is the area of a piece of cardboard with a width of 1/2 ft and a length of 3/10 ft?
3/20 square feet
3/5 x 1/7 =
3/35
Solve 3x = 15
x = 5
The product of two negative integers is .....
a positive integer
Draw a representation of 1/2 of 1/2
See teacher answer key
I work 40 hours a week and spend 3/8 of it at a desk. How many hours do I sit at a desk?
15 hours
2/13 x 4/5 =
8/65
What are the two components of a proportional graph?
- A line
- Goes through the origin
- 132
See answer key for visual
answer is 4/10 or 2/5
Sarah baked 3/4 of a cake, and then she ate 1/3 of what was left. What fraction of the whole cake did she eat?
1/4
What fractions could have the product of 32/55?
Answers may vary (many options):
4/5 x 8/11=
16/5 x 2/11=
8/55 x 4 =
-4 + -7
-11
Create your own multiplication problem that results in a negative integer
Answers may vary
Create a representation of 1/3 x 1/4
See teacher answer key for visual
1/12
A farmer has 5/6 of a field planted with corn. If he decides to plant 1/3 of the remaining field with wheat, what fraction of the entire field will be planted with wheat?
5/18
What is 4/7 of 3/8?
(after you do the computation, don't forget to simplify!)
3/14
What is the perimeter of a square with a length of 4.5 cm?
4.5 + 4.5 + 4.5 + 4.5 = 18 cm
180 < 200
Create two visuals and compare:
3/2 x 1/4 =
2/3 x 2/3 =
4/9 > 3/8
See teacher answer key for visuals
A recipe calls for 2/3 cup of flour. If you need to make 4 1/2 batches of the recipe, how much flour will you need in total?
expression: 9/2 x 2/3 = 18/6 or 3
2/3 x 5/7 x 9 =
90/21 --> 30/7
Solve 3x - 7 = 11
x = 6