Integers
Is this expression positive or negative? How do you know?
(-5)(6)(7)(-7)
It is positive. There are only 2 negative signs.
How do you make a decimal into a percent?
Move the decimal 2 times to the right
or
Multiply by 100 (CENT = 100)
If you double a recipe that calls for 2 cups of milk and 1 cup of chocolate chips, how much do you need?
4 cups milk
2 cups chocolate chips
What is a situation that you could use 60 divided by 4 to find the answer.
(Answers Vary)
EX: A cookie jar contains 60 cookies. Each child gets 4 cookies. How many total children are there?
Brody is adding two numbers using a number line. He starts at 13 and goes left on the line and stops counting at -2 on the number line. What number did he add to 13?
-15
On Monday it was -30 degrees. On Tuesday it was -35 degrees. Which day was the temperature lower?
Tuesday!
How is finding the discount different than tax or tip?
For discounts you have to subtract at the end
What are the two requirements for a graph to be proportional?
1) It is a straight line
2) It goes through (or starts) at the origin (0,0)
What is a unit rate?
a rate for one of something
9 - (-5) =
14
-23 - 53
-76
Liam is seeking a loan with a simple interest rate of 5% per year. If he wants to borrow $2,000, then how much will he be charged in interest after 4 years?
Remember: I = p x r x t
He will be charged $400
Is the equation y=7x proportional?
Yes!
Gwen bought 1/4 yard of fabric for $5.00. Domenica bought 1/2 yards for $7.00. Was that the same deal? If not who got the better deal?
No! Domenica got the better deal!
What is the absolute value of -63?
63
90 divided by -3
-30
Find the sale price of a 25$ t-shirt that is 16% off.
The sale price is 19$
Solve this proportion
x = 9
4 6
x = 6
What is the unit rate of the following situation?
7 apples cost $4.90.
Each apple costs .70 cents
Which one of the following is going to be negative?
(16)(3)
(-1)(76)(-3)
-3(7)
-14 x -6
-3 times 7
Bryson had 1000$ saved for summer vacation. He spends 50$ every week. When will he run out of money?
18 weeks
Evan has a $50.00 budget to purchase a $45.00 pair of boots. If there is an 8% sales tax rate, then how much under budget will Evan be?
$1.40
Is this relationship proportional?
33 miles in 2 hours and 44 miles in 4 hours
No!
33/2 is not equal to 44/4
Zoey is building a new fence at a constant rate of 1/3 section of fence every 3/4 hour. At this rate how fast is she building in sections of fence per hour?
4/9 fence per hour
-6 + 10
4