Math
Math Knowledge
100

What is the absolute value of -7?

7

100

A letter used to math to represent an unknown amount

Variable

100

A letter used to represent an unknown number.

Variable

100

A percent is always out of .....

100

100

What is the place value of the 4 in 3,427,891?

Hundred thousand

200

(-4) + (-7) =

-11

200

A percent that is taken off of the total amount

Discount, Markdown, Sale

200

Simplify the expression.

2x + 5x + 4 + 2

7x + 6

200

What is 20% written as a decimal?

.2

200

Convert 6 1/2 into a improper fraction

13/6

300

(-10) + 15 =

5

300

A percent that is added to an item, but given to the government

Tax

300

Simplify the expression:

2(-4x + 5) + 10

-8x + 20

300

I buy a pair of shoes for \$50. If I have to pay an 8% sales tax, how much tax does she pay?

\$4

300

What is the name of the shape with 5 sides?

Pentagon

400

If you multiply or different with different signs, your answer will be ....

Negative

400

A positive or negative whole number

Integer

400

Solve the equation:

5x - 8 = 22

x = 6

400

What is 22% of 88, rounded to the nearest whole number?

19

400

What is a prime number?

A number that can only be divided by one and itself

500

-125 divided by -5

25

500

The distance around a circle

Circumferece

500

Solve the inequality:

2x + 6 > 10

x = 2

500

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

500

What is a constant?

A number without a variable ex. 8

600

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

600

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

600

Solve the equation:

-3x - 5 = 28

x = -11

600

John estimated that he would be \$200 on groceries. He actually paid \$225. What is the percent error?

11.1% under

600

What is a variable?

A number that represents an unknown ex. X