Order of Operations
3 ⋅ 2 + 7 - 4
9
x + 10 = 20
x = 10
What is the c.o.p. for these ordered pairs?
(1, 3), (2, 6), (3,9) ?
3 or 3/1
If you buy 2 snowcones (x is for snowcones) every 3 hours (y is for time in hours), how many snowcones will you buy if this is a constant rate? Make an equation that can figure out any amount of snowcones and use fractions for the c.o.p.
y = 3/2 x
What is 2 to the third power?
8
100 ⋅ 8 - (98 + 3)
699
4x = 28
x = 7
What is the c.o.p. of (1, 1/4), (2, 1/2), (3, 3/4)?
1/4 or .25
Jessica had $52 in her wallet when she left the house. When she returned home after her shopping trip, she had $15 in her wallet. Write an equation representing how to find how much money Jessica spent.
Use 1 variable only.
52 - x = 15
124 cm = __________ m
1.24 m
4 ÷ 2 - 2 (4 ⋅ 1)
-6
-11 + x = - 2
x = 9
What is the c.o.p. of (2, 3), (4, 6), and (6, 9)?
3/2 or 1 1/2 or 1.5
Evan's teacher opened a bag of candy and equally divided it between her students. She gave each of the 8 students in the class 5 pieces of candy. How many pieces of candy were in the bag?
Use one variable only.
x/8 = 5
What is a 5 sided polygon called?
Pentagon
8 ⋅ 2 ÷ 4 - 3
1
2/3 x = 4
x = 6
What is the c.o.p. of (5,8), (10, 16) ( 15, 24)?
8/5 or 1 3/5 or 1.6
Half of a number is 16. Make an equation and solve.
Use one variable
1/2 x = 16
x = 32
Square root of 8 is between what 2 integers?
2 and 3
20 ÷ 4 ⋅ 5 + 6 (12 - 3)
10 divided by 2 X 5 + 6 ( 3 -2.5)
79
22
x/5 = - 1/3
x = -5/3
What is the c.o.p. of ( 30, 8), (37.5, 10), (45,12)?
8/30 or 4/15
The sum of two numbers is 361 and the difference between the two numbers is 173. What are the two numbers? Grade 8 question
x + y = 361
x - y = 173
x = 94, y =267 Bonus points for answer
10, 13, 16, 19, 22... what is the next term?
Bonus: What is the expression in terms of x for each new term?
25
Bonus: 3x + 1