7th Grade
Math
Math
What is the absolute value of -7?
7
A letter used to math to represent an unknown amount
Variable
A letter used to represent an unknown number.
Variable
A percent is always out of .....
100
What is the place value of the 4 in 3,427,891?
Hundred thousand
(-4) + (-7) =
-11
A percent that is taken off of the total amount
Discount, Markdown, Sale
Simplify the expression.
2x + 5x + 4 + 2
7x + 6
What is 20% written as a decimal?
.2
Convert 6 1/2 into a improper fraction
13/6
(-10) + 15 =
5
A percent that is added to an item, but given to the government
Tax
Simplify the expression:
2(-4x + 5) + 10
-8x + 20
I buy a pair of shoes for $50. If I have to pay an 8% sales tax, how much tax does she pay?
$4
What is the name of the shape with 5 sides?
Pentagon
If you multiply or divide with different signs, your answer will be ....
Negative
A positive or negative whole number
Integer
Solve the equation:
5x - 8 = 22
x = 6
What is 22% of 88, rounded to the nearest whole number?
19
What is a prime number?
A number that can only be divided by one and itself
-125 divided by -5
25
The distance around a circle
Circumferece
Solve the inequality:
2x + 6 > 10
x > 2
I buy a new shirt that originally cost $40 dollars. It is on sale for 20% off. How much do I pay now for the shirt after the discount?
$32
What is a constant?
A number without a variable ex. 8
A diver starts at 20 feet below sea level. He dives down 40 feet deeper to see a fish. He then swims back up 15 feet to see a coral reef. Where is his location now?
-45 feet
What is the difference between an algebraic expression and an algebraic equation?
Expression: No equal sign; can only be simplified
Equation: Has an equal sign; can be solved
Solve the equation:
-3x - 5 = 28
x = -11
John estimated that he would be $200 on groceries. He actually paid $225. What is the percent error?
11.1% under
What is a variable?
A number that represents an unknown ex. X